Build(deps): bump @primer/octicons-react from 19.20.0 to 19.21.0

Bumps [@primer/octicons-react](https://github.com/primer/octicons) from 19.20.0 to 19.21.0.
- [Release notes](https://github.com/primer/octicons/releases)
- [Changelog](https://github.com/primer/octicons/blob/main/CHANGELOG.md)
- [Commits](primer/octicons@v19.20.0...v19.21.0)

---
updated-dependencies:
- dependency-name: "@primer/octicons-react"
  dependency-version: 19.21.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

package-lock.json

@@ -27,7 +27,7 @@
   },
   "dependencies": {
     "@primer/css": "22.0.2",
-    "@primer/octicons-react": "19.20.0",
+    "@primer/octicons-react": "19.21.0",
     "@primer/primitives": "11.3.0",
     "@primer/view-components": "0.46.0",
     "@tanstack/react-query": "5.90.10",