chore(deps): update dependency sinon to v15

Author: renovate[bot]

package-lock.json

@@ -88,7 +88,7 @@
     "pretty-bytes": "^6.0.0",
     "rollup": "^2.21.0",
     "rollup-plugin-babel": "^4.4.0",
-    "sinon": "^14.0.0",
+    "sinon": "^15.0.0",
     "typescript": "^4.0.2"
   },
   "nyc": {