Add PR action to validate pre-commit rules

Author: DoPaNik

.github/workflows/pr.yml

@@ -0,0 +1,31 @@
+name: pre-commit
+
+on:
+  pull_request:
+    branches:
+      - main
+      - 'release/**'
+
+jobs:
+  run-pre-commit:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0  # notwendig für pre-commit diff-basierte Checks
+
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: '3.x'
+
+      - name: Install pre-commit
+        run: |
+          python -m pip install --upgrade pip
+          pip install pre-commit
+
+      - name: Run pre-commit on PR diff
+        run: |
+          pre-commit run --from-ref origin/${{ github.base_ref }} --to-ref ${{ github.sha }}