Adding pre-commit on check-in.

Author: barndawgie

.github/workflows/pre-commit.yml

@@ -0,0 +1,20 @@
+---
+name: pre-commit
+
+on:
+  pull_request:
+  push:
+    branches: [main]
+
+jobs:
+  pre-commit:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v4
+        with:
+          python-version: "3.x"
+      - uses: pre-commit/[email protected]
+    concurrency:
+      group: ${{ github.workflow }}-${{ github.head_ref || github.ref_name }}
+      cancel-in-progress: true

.github/workflows/update-pre-commit.yml

@@ -0,0 +1,29 @@
+---
+name: Pre-commit auto-update
+
+on:
+  # every Monday at midnight
+  schedule:
+    - cron: "0 0 * * 1"
+  # on demand
+  workflow_dispatch:
+
+jobs:
+  auto-update:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+      pull-requests: write
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v4
+        with:
+          python-version: "3.x"
+      - uses: browniebroke/[email protected]
+      - uses: peter-evans/create-pull-request@v5
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+          branch: update/pre-commit-hooks
+          title: Update pre-commit hooks
+          commit-message: "chore: update pre-commit hooks"
+          body: Update versions of pre-commit hooks to latest version.