chore(deps): update dependency sinon from 20.0.0 to v21

Author: renovate[bot]

package-lock.json

@@ -36,7 +36,7 @@
     "react-dom": "^19.0.0",
     "react-transition-group": "^4.4.2",
     "rimraf": "^6.0.0",
-    "sinon": "^20.0.0",
+    "sinon": "^21.0.0",
     "style-loader": "^4.0.0",
     "url-loader": "^4.1.1",
     "webpack": "^5.68.0",