chore(deps): update dependency nyc to v17

Author: renovate[bot]

package.json

@@ -99,7 +99,7 @@
     "lint-staged": "8.2.1",
     "mocha": "6.2.3",
     "mocha-lcov-reporter": "1.3.0",
-    "nyc": "13.3.0",
+    "nyc": "17.1.0",
     "prettier": "1.19.1",
     "prettier-eslint": "8.8.2",
     "rimraf": "2.7.1",