ci: update actions/stale to v6.0.1 (#37079)

.github/workflows/stale.yml

@@ -11,7 +11,7 @@ jobs:
   stale:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/stale@3de2653986ebd134983c79fe2be5d45cc3d9f4e1
+      - uses: actions/stale@5ebf00ea0e4c1561e9b43a292ed34424fb1d4578 # tag: v6.0.1
         with:
           days-before-stale: 90
           days-before-close: 30
@@ -28,7 +28,7 @@ jobs:
     if: ${{ always() }}
     needs: stale
     steps:
-      - uses: actions/stale@3de2653986ebd134983c79fe2be5d45cc3d9f4e1
+      - uses: actions/stale@5ebf00ea0e4c1561e9b43a292ed34424fb1d4578 # tag: v6.0.1
         with:
           days-before-stale: -1
           days-before-close: 10