fix: upgrade nyc from 15.0.0 to 15.0.1

Snyk has created this PR to upgrade nyc from 15.0.0 to 15.0.1.

See this package in NPM:
https://www.npmjs.com/package/nyc

See this project in Snyk:
https://app.snyk.io/org/randytarampi/project/f19b55bc-d2be-4754-a389-eaaf3835012a?utm_source=github&utm_medium=upgrade-pr

package.json

@@ -29,7 +29,7 @@
     "gulp-mocha": "^7.0.2",
     "mkdirp": "^1.0.4",
     "mocha": "^7.1.1",
-    "nyc": "^15.0.0",
+    "nyc": "^15.0.1",
     "rimraf": "^3.0.2",
     "semantic-release": "^17.0.7",
     "sinon": "^9.0.2"