Adding upstream version 0.52+dfsg.

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

.github/workflows/test.yml

@@ -0,0 +1,39 @@
+name: test
+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: |
+          pip install -U uv
+          uv sync --group dev --group test
+          pip install -e .
+      - run: make lint
+  tests:
+    name: tests
+    strategy:
+      matrix:
+        python: ["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: |
+          pip install -U uv
+          uv sync --group dev --group test
+          pip install -e .
+      - run: make test