chore(deps): update dependency moment to v2.21.0

Author: renovate-bot

package.json

@@ -17,7 +17,7 @@
     "@types/jest": "21.1.10",
     "@types/parse": "2.4.4",
     "jest": "22.4.2",
-    "moment": "^2.21.0",
+    "moment": "2.21.0",
     "parse": "1.11.0",
     "ts-jest": "21.1.3",
     "tslint": "5.8.0",

yarn.lock

@@ -2086,9 +2086,9 @@ minimist@^1.1.1, minimist@^1.2.0:
   dependencies:
     minimist "0.0.8"
 
-moment@^2.21.0:
+moment@2.21.0:
   version "2.21.0"
-  resolved "https://registry.npmjs.org/moment/-/moment-2.21.0.tgz#2a114b51d2a6ec9e6d83cf803f838a878d8a023a"
+  resolved "https://registry.yarnpkg.com/moment/-/moment-2.21.0.tgz#2a114b51d2a6ec9e6d83cf803f838a878d8a023a"
 
 ms@2.0.0:
   version "2.0.0"