Merging upstream version 26.25.3.

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

.github/workflows/package-test.yml

@@ -0,0 +1,33 @@
+name: Run tests and linter checks
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  run-checks:
+    runs-on: ubuntu-22.04
+    strategy:
+      matrix:
+        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12", "3.13"]
+    steps:
+    - uses: actions/checkout@v4
+    - name: Set up Python ${{ matrix.python-version }}
+      uses: actions/setup-python@v5
+      with:
+        python-version: ${{ matrix.python-version }}
+        cache: pip
+    - name: Create a virtual environment
+      run: |
+        python -m venv .venv
+    - name: Install dependencies
+      run: |
+        source ./.venv/bin/activate
+        python -m pip install --upgrade pip
+        make install-dev
+    - name: Run tests and linter checks
+      run: |
+        source ./.venv/bin/activate
+        make check