Update dependency sinon to v15

Author: renovate[bot]

package.json

@@ -29,7 +29,7 @@
     "rewire": "6.0.0",
     "saucelabs": "7.2.0",
     "selenium-webdriver": "4.6.1",
-    "sinon": "14.0.2",
+    "sinon": "15.0.1",
     "supertest": "6.3.1"
   }
 }