Use GH action for comments

I want to avoid future mentions as the current PAT is mine.

Signed-off-by: Chihurumnaya Ibiam <ibiam@sugarlabs.org>

Author: chimosky

.github/workflows/pr-jest-tests.yml

@@ -80,10 +80,9 @@ jobs:
             fi
           } > "$COMMENT_FILE"
 
-      - name: Post PR Comment using gh CLI
-        env:
-          GITHUB_TOKEN: ${{ secrets.PAT }}
-          COMMENT_FILE: ${{ steps.results.outputs.COMMENT_FILE }}
-          PR_NUMBER: ${{ steps.results.outputs.PR_NUMBER }}
-        run: |
-          gh pr comment "$PR_NUMBER" --body-file "$COMMENT_FILE"
+      - name: PR comment
+        uses: thollander/actions-comment-pull-request@v3
+        with:
+          file-path: ${{ steps.results.outputs.COMMENT_FILE }}
+          pr-number: ${{ steps.results.outputs.PR_NUMBER }}
+          github-token: ${{ secrets.GITHUB_TOKEN }}