Enable also new GHA for short-benchmarks

Author: bkontur

.github/workflows/check-frame-omni-bencher.yml

@@ -17,8 +17,6 @@ env:
 
 jobs:
   changes:
-    # TODO: remove once migration is complete or this workflow is fully stable
-    if: contains(github.event.label.name, 'GHA-migration')
     permissions:
       pull-requests: read
     uses: ./.github/workflows/reusable-check-changed-files.yml