Adding upstream version 0.52+dfsg.

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

.github/workflows/run_tests.yml

@@ -1,37 +0,0 @@
-name: run_tests
-on:
-  push:
-    branches:
-      - main
-  pull_request:
-    branches:
-      - main
-jobs:
-  lint:
-    name: lint
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v2
-      - uses: actions/setup-python@v2
-      - name: "Installs dependencies"
-        run: |
-          curl -sSL https://install.python-poetry.org | python3 -
-      - run: ~/.local/share/pypoetry/venv/bin/poetry install --with test
-      - run: make lint
-  tests:
-    name: tests
-    strategy:
-      matrix:
-        python: ["3.10", "3.11", "3.12", "3.13"]
-      fail-fast: false
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v2
-      - uses: actions/setup-python@v2
-        with:
-          python-version: ${{ matrix.python }}
-      - name: "Installs dependencies"
-        run: |
-          curl -sSL https://install.python-poetry.org | python3 -
-      - run: ~/.local/share/pypoetry/venv/bin/poetry install --with test
-      - run: make test