Add GitHub Actions workflow for pre-commit hooks

GitHub: fix mxcube#1313

.github/workflows/pre-commit.yaml

@@ -0,0 +1,20 @@
+---
+
+name: pre-commit
+
+"on": [pull_request, push]
+
+jobs:
+
+  pre-commit:
+    runs-on: ubuntu-22.04
+    steps:
+
+      # Check against the lowest supported version
+      - uses: actions/setup-python@v5
+        with:
+          python-version: "3.8"
+
+      - uses: actions/checkout@v4
+
+      - uses: pre-commit/action@v3