Bump nyc from 12.0.2 to 13.1.0 (#5206)

Bumps [nyc](https://github.com/istanbuljs/nyc) from 12.0.2 to 13.1.0.
- [Release notes](https://github.com/istanbuljs/nyc/releases)
- [Changelog](https://github.com/istanbuljs/nyc/blob/master/CHANGELOG.md)
- [Commits](https://github.com/istanbuljs/nyc/compare/v12.0.2...v13.1.0)

Signed-off-by: dependabot[bot] <support@dependabot.com>

package.json

@@ -66,7 +66,7 @@
     "jsdoc-babel": "^0.5.0",
     "lint-staged": "^8.1.0",
     "mongodb-runner": "4.3.2",
-    "nyc": "^12.0.2",
+    "nyc": "^13.1.0",
     "prettier": "1.15.3",
     "supports-color": "^5.4.0"
   },