deps: bump @octokit/rest from 19.0.13 to 21.0.0

Bumps [@octokit/rest](https://github.com/octokit/rest.js) from 19.0.13 to 21.0.0.
- [Release notes](https://github.com/octokit/rest.js/releases)
- [Commits](octokit/rest.js@v19.0.13...v21.0.0)

---
updated-dependencies:
- dependency-name: "@octokit/rest"
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

package.json

@@ -42,7 +42,7 @@
     "@npmcli/git": "^5.0.3",
     "@npmcli/map-workspaces": "^3.0.0",
     "@npmcli/package-json": "^5.0.0",
-    "@octokit/rest": "^19.0.4",
+    "@octokit/rest": "^21.0.0",
     "dedent": "^1.5.1",
     "diff": "^5.0.0",
     "glob": "^10.1.0",