chore(deps): update actions/stale action to v8 (#248)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Co-authored-by: kodiakhq[bot] <49736102+kodiakhq[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/stalebot.yml

@@ -7,7 +7,7 @@ jobs:
   stale:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/stale@v5.2.1
+      - uses: actions/stale@v8.0.0
         with:
           exempt-issue-labels: 'WIP,security,action_item,never_stale'
           days-before-issue-stale: 365