build: auto update pre-commit configs

.github/workflows/pre-commit-autoupdate.yaml

@@ -0,0 +1,49 @@
+# based on https://github.com/cookiecutter/cookiecutter-django/blob/master/
+# .github/workflows/pre-commit-autoupdate.yml
+# run pre-commit autoupdate and create a pull request if any changes
+
+name: pre-commit auto-update
+
+on:
+  schedule:
+    - cron: "0 6 * * 1" # every Monday at 06:00 UTC
+  workflow_dispatch: # to trigger manually
+
+permissions:
+  contents: read
+
+jobs:
+  auto-update:
+    # disables this workflow from running in a repository that is not part of
+    # the indicated organization/user
+    if: github.repository_owner == 'martibosch'
+    permissions:
+      contents: write # for peter-evans/create-pull-request to create branch
+      pull-requests: write # for peter-evans/create-pull-request to create PR
+
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v5
+        with:
+          python-version: "3.11"
+
+      - name: install pre-commit
+        run: pip install pre-commit
+
+      - name: autoupdate template
+        run: pre-commit autoupdate
+
+      - name: autoupdate generated projects
+        working-directory: "{{ cookiecutter.repo_name }}"
+        run: pre-commit autoupdate
+
+      - name: create pull request
+        uses: peter-evans/create-pull-request@v5
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+          branch: update/pre-commit-autoupdate
+          title: auto-update pre-commit hooks
+          commit-message: "build: auto-update pre-commit hooks"
+          body: update to latest versions in pre-commit configs
+          labels: update