style/ci: apply clang-format and verify it in ci (#4039)

* style: apply clang-format

* ci: add new clang-format job to CI

src/render/decorations/DecorationPositioner.hpp

@@ -9,14 +9,12 @@
 class CWindow;
 class IHyprWindowDecoration;
 
-enum eDecorationPositioningPolicy
-{
+enum eDecorationPositioningPolicy {
     DECORATION_POSITION_ABSOLUTE = 0, /* Decoration wants absolute positioning */
     DECORATION_POSITION_STICKY,       /* Decoration is stuck to some edge of a window */
 };
 
-enum eDecorationEdges
-{
+enum eDecorationEdges {
     DECORATION_EDGE_TOP    = 1 << 0,
     DECORATION_EDGE_BOTTOM = 1 << 1,
     DECORATION_EDGE_LEFT   = 1 << 2,