fix(ci): clean up workflow path filters

Remove non-existent action.yaml paths from action-security workflow.
Fix glob patterns (**.md → **/*.md) in pr-lint workflow.
Remove unused trigger paths (yarn.lock, pnpm-lock.yaml,
requirements.txt, .github/labels.yml, docs/**) from security-suite
and sync-labels workflows.

.github/workflows/action-security.yml

@@ -6,11 +6,9 @@ on:
   push:
     paths:
       - '**/action.yml'
-      - '**/action.yaml'
   pull_request:
     paths:
       - '**/action.yml'
-      - '**/action.yaml'
   merge_group:
 
 concurrency: