chore: add pre-commit for GitHub workflow with cache

Adjusted from https://pre-commit.com/#github-actions-example and https://github.com/actions/cache/blob/main/restore/README.md#save-intermediate-private-build-artifacts

.github/workflows/run_pre_commit.yml

@@ -0,0 +1,40 @@
+name: Pre-commit
+on: [push, pull_request]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repo files
+        uses: actions/checkout@v4
+
+      - name: Install Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: '3.12.1'
+
+      - name: set PY for pre-commit
+        run: echo "PY=$(python -VV | sha256sum | cut -d' ' -f1)" >> $GITHUB_ENV
+
+      - uses: actions/cache/restore@v4
+        id: pre-commit-cache-restore
+        with:
+          path: ~/.cache/pre-commit
+          key: pre-commit|${{ env.PY }}|${{ hashFiles('.pre-commit-config.yaml') }}
+          fail-on-cache-miss: false
+
+      - name: Setup git config for pre-commit
+        run: git init && git config --global --add safe.directory /__w/lacrei-api/lacrei-api && git add .
+
+      - name: Install pre-commit
+        run: pip install pre-commit && pre-commit install --install-hooks --overwrite
+
+      - uses: actions/cache/save@v4
+        id: pre-commit-cache-save
+        with:
+          path: ~/.cache/pre-commit
+          key: pre-commit|${{ env.PY }}|${{ hashFiles('.pre-commit-config.yaml') }}
+
+      - name: Run pre-commit all files - fails if adjustments are required
+        run: pre-commit run --all-files

README.md

@@ -62,6 +62,8 @@ $ pipx install pre-commit
 $ pre-commit install --install-hooks --overwrite
 ```
 
+`pre-commit` is configured to also run per push and pull requests in GitHub workflow.
+
 ## Run the project using Docker Compose (recommended way)
 
 After [installing Docker Compose](https://docs.docker.com/compose/install/),