Add Ruff formatting action

.github/workflows/ruff.yml

@@ -0,0 +1,23 @@
+name: Ruff Formatting
+on: [pull_request]
+jobs:
+  ruff:
+    if: ${{ github.actor != 'dependabot[bot]' }} # Do not run on commits created by dependabot
+    runs-on: ubuntu-latest
+    permissions:
+      # Give the default GITHUB_TOKEN write permission to commit and push the changed files.
+      contents: write # Allows reading and writing repository contents (e.g., commits)
+      pull-requests: write # Allows reading and writing pull requests
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          ref: ${{ github.sha }}
+          token: ${{ secrets.GITHUB_TOKEN }}
+      - uses: chartboost/ruff-action@v1
+        with:
+          src: './jcvi ./tests'
+          args: 'format --target-version py310'
+      - uses: stefanzweifel/git-auto-commit-action@v5
+        id: auto-commit-action
+        with:
+          commit_message: 'Style fixes by Ruff'