Merge pull request #28 from googleapis/greenkeeper/nyc-12.0.2

chore(package): update nyc to version 12.0.2

Author: JustinBeckwith

packages/google-cloud-oslogin/package.json

@@ -64,7 +64,7 @@
     "intelli-espower-loader": "^1.0.1",
     "jsdoc": "^3.5.5",
     "mocha": "^5.0.0",
-    "nyc": "^11.4.1",
+    "nyc": "^12.0.2",
     "power-assert": "^1.4.4",
     "prettier": "^1.9.2",
     "through2": "^2.0.3"