chore(deps): update dependency @types/sinon to v21

Author: renovate[bot]

package-lock.json

@@ -227,7 +227,7 @@
     "@types/jsdom-global": "3.0.7",
     "@types/mocha": "10.0.10",
     "@types/node": "24.10.1",
-    "@types/sinon": "17.0.4",
+    "@types/sinon": "21.0.0",
     "assert": "2.1.0",
     "check-dts": "0.9.0",
     "component-emitter": "2.0.0",