fix nits

Signed-off-by: Yanxuan Liu <[email protected]>

Author: YanxuanLiu

.github/workflows/license-header-check.yml

@@ -41,3 +41,4 @@ jobs:
             *Dockerfile*,
             auto-merge/automerge,
             signoff-check/signoff-check
+          check_main: true

license-header-check/action.yml

@@ -47,8 +47,6 @@ runs:
             echo "Skip this check for Merge to main PR."
             exit 0
           fi
-        else
-          echo "Will check main branch."
         fi
         
         # Format file patterns