Adding upstream version 0.15.0.

Signed-off-by: Daniel Baumann <daniel@debian.org>

.github/workflows/publish.yml

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+name: Build and Publish Package
+
+on:
+  pull_request:
+    branches:
+      - main
+    types:
+      - closed
+
+jobs:
+  publish-package:
+    if: ${{ github.event.pull_request.merged == true && startsWith(github.event.pull_request.head.ref, 'release/v') }}
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Check out textarea main branch
+        uses: actions/checkout@v4
+        with:
+          ref: main
+      - name: Set up Python 3.10
+        uses: actions/setup-python@v5
+        with:
+          python-version: "3.10"
+      - name: Install Poetry
+        uses: snok/install-poetry@v1
+        with:
+          version: 1.2.2
+      - name: Configure poetry
+        run: poetry config --no-interaction pypi-token.pypi ${{ secrets.TEXTAREA_PYPI_TOKEN }}
+      - name: Get textarea Version
+        id: textarea_version
+        run: echo "textarea_version=$(poetry version --short)" >> $GITHUB_OUTPUT
+      - name: Build package
+        run: poetry build --no-interaction
+      - name: Publish package to PyPI
+        run: poetry publish --no-interaction
+      - name: Create a Github Release
+        uses: softprops/action-gh-release@v2
+        with:
+          tag_name: v${{ steps.textarea_version.outputs.textarea_version }}
+          target_commitish: main
+          token: ${{ secrets.TEXTAREA_RELEASE_TOKEN }}
+          body_path: CHANGELOG.md
+          files: |
+            LICENSE
+            dist/*textual_textarea*.whl
+            dist/*textual_textarea*.tar.gz

.github/workflows/release.yml

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+name: Create Release Branch
+
+on:
+  workflow_dispatch:
+    inputs:
+      newVersion:
+        description: A version number for this release (e.g., "0.1.0")
+        required: true
+
+jobs:  
+  prepare-release:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+      pull-requests: write
+
+    steps:
+      - name: Check out textarea main branch
+        uses: actions/checkout@v4
+        with:
+          ref: main
+      - name: Set up Python 3.10
+        uses: actions/setup-python@v5
+        with:
+          python-version: "3.10"
+      - name: Install Poetry
+        uses: snok/install-poetry@v1
+        with:
+          version: 1.2.2
+      - name: Create release branch
+        run: |
+          git checkout -b release/v${{ github.event.inputs.newVersion }}
+          git push --set-upstream origin release/v${{ github.event.inputs.newVersion }}
+      - name: Bump version
+        run: poetry version ${{ github.event.inputs.newVersion }} --no-interaction
+      - name: Ensure package can be built
+        run: poetry build --no-interaction
+      - name: Update CHANGELOG
+        uses: thomaseizinger/keep-a-changelog-new-release@v3
+        with:
+          version: ${{ github.event.inputs.newVersion }}
+      - name: Commit Changes
+        uses: stefanzweifel/git-auto-commit-action@v5
+        with:
+          commit_message: Bumps version to ${{ github.event.inputs.newVersion }}
+      - name: Create pull request into main
+        uses: thomaseizinger/create-pull-request@1.3.1
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          head: release/v${{ github.event.inputs.newVersion }}
+          base: main
+          title: v${{ github.event.inputs.newVersion }}
+          body: >
+            This PR was automatically generated. It bumps the version number
+            in pyproject.toml and updates CHANGELOG.md. You may have to close
+            this PR and reopen it to get the required checks to run.

.github/workflows/static.yml

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+name: "Perform Static Analysis"
+
+on:
+  pull_request:
+
+# will cancel previous workflows triggered by the same event and for the same ref for PRs or same SHA otherwise
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event_name }}-${{ contains(github.event_name, 'pull_request') && github.event.pull_request.head.ref || github.sha }}
+  cancel-in-progress: true
+
+jobs:
+  static:
+    name: Static Analysis - 3.11
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out Repo
+        uses: actions/checkout@v4
+        with:
+          persist-credentials: false
+      - name: Set up Python 3.11
+        uses: actions/setup-python@v5
+        id: setup-python
+        with:
+          python-version: "3.11"
+      - name: Install Poetry
+        uses: snok/install-poetry@v1
+        with:
+          version: 1.4.2
+          virtualenvs-create: true
+          virtualenvs-in-project: true
+          installer-parallel: true
+      - name: Load cached venv
+        id: cached-poetry-dependencies
+        uses: actions/cache@v4
+        with:
+          path: .venv
+          key: static-venv-${{ runner.os }}-${{ steps.setup-python.outputs.python-version }}-${{ hashFiles('**/poetry.lock') }}
+      - name: Install python dependencies
+        if: steps.cached-poetry-dependencies.outputs.cache-hit != 'true'
+        run: poetry install --sync --no-interaction --without dev
+      - name: Run analysis
+        run: |
+          source .venv/bin/activate
+          ruff format .
+          ruff check .
+          mypy

.github/workflows/test.yml

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+name: Test
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+
+# will cancel previous workflows triggered by the same event and for the same ref for PRs or same SHA otherwise
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event_name }}-${{ contains(github.event_name, 'pull_request') && github.event.pull_request.head.ref || github.sha }}
+  cancel-in-progress: true
+
+defaults:
+  run:
+    shell: bash
+
+jobs:
+  test-windows:
+    name: Windows - 3.10
+    runs-on: Windows-latest
+    timeout-minutes: 10
+    steps:
+      - name: Check out Repo
+        uses: actions/checkout@v4
+        with:
+          persist-credentials: false
+      - name: Set up Python 3.10
+        uses: actions/setup-python@v5
+        with:
+          python-version: "3.10"
+      - name: Install Poetry
+        uses: snok/install-poetry@v1
+        with:
+          version: 1.4.2
+      - name: Install python dependencies
+        run: poetry install --sync --no-interaction --only main,test
+      - name: Run tests
+        run: poetry run pytest
+
+  test:
+    name: ${{ matrix.os }} - ${{ matrix.py }}
+    runs-on: ${{ matrix.os }}-latest
+    timeout-minutes: 10
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          - ubuntu
+          - MacOs
+        py:
+          - "3.13"
+          - "3.12"
+          - "3.11"
+          - "3.10"
+          - "3.9"
+    steps:
+      - name: Check out Repo
+        uses: actions/checkout@v4
+        with:
+          persist-credentials: false
+      - name: Set up Python ${{ matrix.py }}
+        id: setup-python
+        uses: actions/setup-python@v5
+        with:
+          python-version: ${{ matrix.py }}
+      - name: Load cached Poetry installation
+        id: cached-poetry-install
+        uses: actions/cache@v4
+        with:
+          path: ~/.local
+          key: poetry-${{ runner.os }}-${{ steps.setup-python.outputs.python-version }}-${{ hashFiles('**/poetry.lock') }}
+      - name: Install Poetry
+        if: steps.cached-poetry-install.outputs.cache-hit != 'true'
+        uses: snok/install-poetry@v1
+        with:
+          version: 1.4.2
+          virtualenvs-create: true
+          virtualenvs-in-project: true
+          installer-parallel: true
+      - name: Load cached venv
+        id: cached-poetry-dependencies
+        uses: actions/cache@v4
+        with:
+          path: .venv
+          key: venv-${{ runner.os }}-${{ steps.setup-python.outputs.python-version }}-${{ hashFiles('**/poetry.lock') }}
+      - name: Install python dependencies
+        if: steps.cached-poetry-dependencies.outputs.cache-hit != 'true'
+        run: poetry install --sync --no-interaction --only main,test
+      - name: Run tests
+        run: |
+          source .venv/bin/activate
+          pytest