added merge_group to build_systems and treefmt

.github/workflows/build_systems.yml

@@ -2,6 +2,7 @@ name: build_systems
 on:
   workflow_dispatch:
   pull_request:
+  merge_group:
   push:
     branches: [main]
   schedule:

.github/workflows/treefmt.yml

@@ -2,6 +2,7 @@ name: treefmt
 on:
   workflow_dispatch:
   pull_request:
+  merge_group:
   push:
     branches: [main]