fix(package): update env-ci to version 2.0.0

Author: greenkeeper[bot]

package.json

@@ -28,7 +28,7 @@
     "chalk": "^2.3.0",
     "cosmiconfig": "^4.0.0",
     "debug": "^3.1.0",
-    "env-ci": "^1.0.0",
+    "env-ci": "^2.0.0",
     "execa": "^0.10.0",
     "get-stream": "^3.0.0",
     "git-log-parser": "^1.2.0",