chore(deps): update dependency @types/react to v17.0.21 (#41)

Co-authored-by: Renovate Bot <bot@renovateapp.com>

Author: renovate[bot]

package.json

@@ -53,7 +53,7 @@
     "@kkt/raw-modules": "6.11.0",
     "@kkt/scope-plugin-options": "6.11.0",
     "@mapbox/rehype-prism": "0.7.0",
-    "@types/react": "17.0.20",
+    "@types/react": "17.0.21",
     "@types/react-dom": "17.0.9",
     "@types/react-router-dom": "5.1.9",
     "@types/react-test-renderer": "17.0.1",