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

Author: renovate-bot

package.json

@@ -68,7 +68,7 @@
     "@types/prettier": "^3.0.0",
     "@types/proxyquire": "^1.3.31",
     "@types/qs": "^6.9.18",
-    "@types/sinon": "^20.0.0",
+    "@types/sinon": "^21.0.0",
     "@types/tmp": "^0.2.6",
     "@types/url-template": "^2.0.28",
     "@types/yargs-parser": "^21.0.3",