Bump sinon from 17.0.1 to 21.0.0

---
updated-dependencies:
- dependency-name: sinon
  dependency-version: 21.0.0
  dependency-type: direct:development
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

package-lock.json

@@ -47,7 +47,7 @@
     "mocha": "^10.4.0",
     "prettier": "^3.5.3",
     "proxyquire": "^2.1.3",
-    "sinon": "^17.0.1",
+    "sinon": "^21.0.0",
     "sinon-chai": "^3.7.0",
     "typescript": "~5.8.3"
   },