chore(deps): update dependency mockdate to v2.0.4

Author: renovate-bot

package-lock.json

@@ -56,7 +56,7 @@
     "faker": "4.1.0",
     "json-to-graphql-query": "1.9.0",
     "mocha": "6.2.0",
-    "mockdate": "2.0.3",
+    "mockdate": "2.0.4",
     "nock": "10.0.6",
     "nyc": "14.1.1",
     "standard": "12.0.1",