Adding upstream version 0.12.0.

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

.github/workflows/static.yml

@@ -0,0 +1,53 @@
+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 }}-${{ contains(github.event_name, 'pull_request') && github.event.pull_request.head.ref || github.sha }}
+  cancel-in-progress: true
+
+jobs:
+  static:
+    name: Static Analysis - 3.11
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out Repo
+        uses: actions/checkout@v4
+        with:
+          persist-credentials: false
+      - name: Set up Python 3.11
+        uses: actions/setup-python@v5
+        id: setup-python
+        with:
+          python-version: "3.11"
+      - name: Load cached Poetry installation
+        id: cached-poetry-install
+        uses: actions/cache@v4
+        with:
+          path: ~/.local
+          key: poetry-${{ runner.os }}-${{ steps.setup-python.outputs.python-version }}-0
+      - name: Install Poetry
+        if: steps.cached-poetry-install.outputs.cache-hit != 'true'
+        uses: snok/install-poetry@v1
+        with:
+          version: 1.4.2
+          virtualenvs-create: true
+          virtualenvs-in-project: true
+          installer-parallel: true
+      - name: Load cached venv
+        id: cached-poetry-dependencies
+        uses: actions/cache@v4
+        with:
+          path: .venv
+          key: static-venv-${{ 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 --check
+          ruff check .
+          mypy