chore(deps): update dependency sinon to v15 (#237)

Author: renovate-bot

package-lock.json

@@ -55,7 +55,7 @@
     "mocha": "^10.0.0",
     "nyc": "^15.0.0",
     "protobufjs-cli": "1.1.1",
-    "sinon": "^14.0.0",
+    "sinon": "^15.0.0",
     "source-map-support": "^0.5.12",
     "tmp": "0.2.1",
     "ts-mockito": "^2.2.5",