build(deps-dev): bump @types/sinon from 17.0.4 to 21.0.0 (#524)

Author: dependabot[bot]

package-lock.json

@@ -71,7 +71,7 @@
   "devDependencies": {
     "@types/mocha": "^10.0.10",
     "@types/node": "^24.9.2",
-    "@types/sinon": "^17.0.4",
+    "@types/sinon": "^21.0.0",
     "eslint": "^9.14.0",
     "eslint-config-eslint": "^11.0.0",
     "husky": "^9.1.6",