chore(deps): update dependency sinon to v21

Author: renovate-bot

package.json

@@ -121,7 +121,7 @@
     "node-fetch": "^2.6.7",
     "pack-n-play": "^2.0.0",
     "proxyquire": "^2.1.3",
-    "sinon": "^18.0.0",
+    "sinon": "^21.0.0",
     "nise": "6.0.0",
     "path-to-regexp": "6.3.0",
     "tmp": "^0.2.0",