fix indentation

Author: 2bndy5

.github/workflows/clang_format.yml

@@ -1,10 +1,10 @@
 name: check code formatting
 
 on:
-    push:
-        branches: [master, v1.x]
-    pull_request:
-        branches: [master, v1.x]
+  push:
+    branches: [master, v1.x]
+  pull_request:
+    branches: [master, v1.x]
 
 permissions: {}