Fix Linter issue

Author: VimukthiPerera

.github/workflows/linter.yml

@@ -11,18 +11,15 @@ permissions:
 
 jobs:
   lint:
-    if: github.event.review.state == 'approved'
+    if: github.event_name == 'pull_request' || (github.event_name == 'pull_request_review' && github.event.review.state == 'approved')
     name: Lint Code Base
     runs-on: ubuntu-latest
     steps:
       - name: Checkout Code
         uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
         with:
-          # Check out the PR head through GitHub's pull ref for review events
-          ref: refs/pull/${{ github.event.pull_request.number }}/head
-          # Full git history is needed to get a proper list of changed files within `super-linter`
+          ref: ${{ github.head_ref }}
           fetch-depth: 0
-          # Disable credential persistence to harden the runner
           persist-credentials: false
 
       - name: Set lint SHA from checked-out HEAD
@@ -37,5 +34,5 @@ jobs:
         env:
           VALIDATE_ALL_CODEBASE: false
           DEFAULT_BRANCH: ${{ github.event.pull_request.base.ref }}
-          GITHUB_SHA: ${{ steps.set_lint_sha.outputs.sha }}
+          GITHUB_HEAD_REF: ${{ github.head_ref }}
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}