Bump @sanity/client from 6.21.0 to 6.21.1

Bumps [@sanity/client](https://github.com/sanity-io/client) from 6.21.0 to 6.21.1.
- [Release notes](https://github.com/sanity-io/client/releases)
- [Changelog](https://github.com/sanity-io/client/blob/main/CHANGELOG.md)
- [Commits](sanity-io/client@v6.21.0...v6.21.1)

---
updated-dependencies:
- dependency-name: "@sanity/client"
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

package.json

@@ -15,7 +15,7 @@
   "license": "ISC",
   "devDependencies": {
     "@sanity/astro": "^3.1.4",
-    "@sanity/client": "^6.20.1",
+    "@sanity/client": "^6.21.1",
     "astro": "^4.11.5",
     "prettier": "3.3.2",
     "react": "^18.3.1",