mypy_primer: Resolve node.js 12 actions deprecation warning (#9421)

Author: Avasam

.github/workflows/mypy_primer_comment.yml

@@ -74,8 +74,8 @@ jobs:
             return prNumber
 
       - name: Hide old comments
-        # v0.3.0
-        uses: kanga333/comment-hider@bbdf5b562fbec24e6f60572d8f712017428b92e0
+        # v0.4.0
+        uses: kanga333/comment-hider@c12bb20b48aeb8fc098e35967de8d4f8018fffdf
         with:
           github_token: ${{ secrets.GITHUB_TOKEN }}
           leave_visible: 1