GH Action for stylua check

.github/workflows/format-check.yml

@@ -0,0 +1,13 @@
+name: Lua Format Check
+on: [push]
+jobs:
+  lua-format-check:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: JohnnyMorganz/stylua-action@v4
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+          version: latest # NOTE: we recommend pinning to a specific version in case of formatting changes
+          # CLI arguments
+          args: --check .