Remove unlabeled trigger from label-validation workflow (#207)

* Initial plan

* Remove unlabeled trigger from label-validation workflow to prevent race conditions

Co-authored-by: functionstackx <47992694+functionstackx@users.noreply.github.com>

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: functionstackx <47992694+functionstackx@users.noreply.github.com>

Author: Copilot

.github/workflows/label-validation.yml

@@ -7,7 +7,7 @@ concurrency:
 
 on:
   pull_request:
-    types: [labeled, unlabeled, synchronize]
+    types: [labeled, synchronize]
 
 jobs:
   get-jobs: