build(deps): bump actions/github-script from 6.3.3 to 6.4.0

Bumps [actions/github-script](https://github.com/actions/github-script) from 6.3.3 to 6.4.0.
- [Release notes](https://github.com/actions/github-script/releases)
- [Commits](actions/github-script@d556fea...98814c5)

---
updated-dependencies:
- dependency-name: actions/github-script
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/external-contribution-labeler.yaml

@@ -18,7 +18,7 @@ jobs:
     permissions:
       pull-requests: write
     steps:
-      - uses: actions/github-script@d556feaca394842dc55e4734bf3bb9f685482fa0
+      - uses: actions/github-script@98814c53be79b1d30f795b907e553d8679345975
         with:
           script: |
             github.rest.issues.addLabels({