ci: add cmake format workflow

.github/workflows/cmake-format.yml

@@ -0,0 +1,23 @@
+name: Run cmake-format linter
+
+on: [push]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v2
+
+    - name: Format CMake files
+      id: cmake-format
+      uses: PuneetMatharu/[email protected]
+      with:
+        args: --in-place
+
+    - name: Commit changes
+      uses: stefanzweifel/git-auto-commit-action@v4
+      with:
+        commit_user_name: cmake-format-bot
+        commit_message: 'Automated commit of cmake-format changes.'