chore(deps): update actions/stale action to v6 (#18426)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

.github/workflows/stale-action.yml

@@ -13,7 +13,7 @@ jobs:
   stale:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/stale@99b6c709598e2b0d0841cd037aaf1ba07a4410bd # tag=v5.2.0
+      - uses: actions/stale@5ebf00ea0e4c1561e9b43a292ed34424fb1d4578 # tag=v6.0.1
         with:
           # Rate limit per run, (defaults to 30, but we've increased it to 40 for now).
           operations-per-run: 40