chore(deps): update dependency nyc to v15.1.0

Author: renovate[bot]

package-lock.json

@@ -38,7 +38,7 @@
     "express-graphql": "0.12.0",
     "graphql": "15.8.0",
     "mocha": "9.2.2",
-    "nyc": "15.0.1",
+    "nyc": "15.1.0",
     "standard": "16.0.4",
     "supertest": "6.2.2",
     "@graphql-yoga/node": "2.13.13"