⬇️(deps) downgrade @types/react to 18.2.21

It was causing compilation issue when using React.StrictMode, see this
https://github.com/DefinitelyTyped/DefinitelyTyped/issues/66841

apps/demo/package.json

@@ -14,7 +14,7 @@
     "@openfun/cunningham-react": "*",
     "@openfun/cunningham-tokens": "*",
     "@openfun/typescript-configs": "*",
-    "@types/react": "18.2.23",
+    "@types/react": "18.2.21",
     "@types/react-dom": "18.2.8",
     "@vitejs/plugin-react": "4.1.0",
     "react": "18.2.0",

packages/react/package.json

@@ -87,7 +87,7 @@
     "@testing-library/react": "14.0.0",
     "@testing-library/user-event": "14.5.1",
     "@types/jest": "29.5.5",
-    "@types/react": "18.2.23",
+    "@types/react": "18.2.21",
     "@types/react-dom": "18.2.8",
     "@vitejs/plugin-react": "4.1.0",
     "@vitest/coverage-c8": "0.33.0",

yarn.lock

@@ -5832,10 +5832,10 @@
     "@types/scheduler" "*"
     csstype "^3.0.2"
 
-"@types/react@18.2.23":
-  version "18.2.23"
-  resolved "https://registry.yarnpkg.com/@types/react/-/react-18.2.23.tgz#60ad6cf4895e93bed858db0e03bcc4ff97d0410e"
-  integrity sha512-qHLW6n1q2+7KyBEYnrZpcsAmU/iiCh9WGCKgXvMxx89+TYdJWRjZohVIo9XTcoLhfX3+/hP0Pbulu3bCZQ9PSA==
+"@types/react@18.2.21":
+  version "18.2.21"
+  resolved "https://registry.yarnpkg.com/@types/react/-/react-18.2.21.tgz#774c37fd01b522d0b91aed04811b58e4e0514ed9"
+  integrity sha512-neFKG/sBAwGxHgXiIxnbm3/AAVQ/cMRS93hvBpg8xYRbeQSPVABp9U2bRnPf0iI4+Ucdv3plSxKK+3CW2ENJxA==
   dependencies:
     "@types/prop-types" "*"
     "@types/scheduler" "*"