Add first version of GHA workflow that runs on PR

.github/workflows/pr.yaml

@@ -0,0 +1,28 @@
+# SPDX-FileCopyrightText: Contributors to the utility-route-project and Alliander N.V.
+#
+# SPDX-License-Identifier: Apache-2.0
+
+name: Quality checks
+on:
+  workflow_dispatch:
+  pull_request:
+    types: [opened, reopened, synchronize, closed]
+jobs:
+  linting:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v6
+      - uses: actions/setup-python@v6
+        with:
+          python-version: 3.12
+      - name: Install Poetry
+        uses: snok/install-poetry@v1
+      - name: Install project
+        shell: bash
+        run: poetry install
+      - name: Run pre-commit
+        shell: bash
+        run: poetry run pre-commit run --all-files
+      - name: Run unit and integration tests
+        shell: bash
+        run: poetry run pytest tests