Setup linting with github ci

.github/workflows/lint.yml

@@ -0,0 +1,28 @@
+name: Lint source code
+
+on:
+  push:
+    branches: [ $default-branch ]
+  pull_request:
+
+jobs:
+
+  mypy:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12"]
+    steps:
+    - uses: actions/checkout@v4
+      with:
+        fetch-depth: 0 # Needed for versioningit to find the repo version
+    - uses: actions/setup-python@v5
+      with:
+        python-version: ${{ matrix.python-version }}
+    - name: Install dependencies
+      run: python -m pip download .[drf]
+
+    - name: Install dependencies
+      run: python -m pip install --upgrade pip
+        -r requirements/requirements-dev.in
+        -r requirements/requirements-test.in