upgrade Sinon to v15

Author: fryjordan

package-lock.json

@@ -55,7 +55,7 @@
     "nightwatch": "^2.3.3",
     "node-fetch": "^2.6.7",
     "redux-mock-store": "^1.5.4",
-    "sinon": "^13.0.2",
+    "sinon": "^15.0.1",
     "style-loader": "^3.3.1",
     "webpack": "^5.74.0",
     "webpack-cli": "^4.10.0",