Upgrade is-ci 1.2.1 -> 2.0.0

Author: ehmicky

package-lock.json

@@ -84,7 +84,7 @@
     "gulp-jscpd": "0.0.8",
     "has-ansi": "^3.0.0",
     "husky": "^1.2.0",
-    "is-ci": "^1.2.1",
+    "is-ci": "^2.0.0",
     "lolex": "^3.0.0",
     "node-releases": "^1.1.0",
     "nyc": "^13.1.0",