chore(deps): update dependency nock to v11 (#157)

Author: renovate[bot]

package-lock.json

@@ -57,7 +57,7 @@
     "json-to-graphql-query": "1.9.0",
     "mocha": "6.2.2",
     "mockdate": "2.0.5",
-    "nock": "10.0.6",
+    "nock": "11.7.0",
     "nyc": "14.1.1",
     "standard": "14.3.1",
     "supertest": "4.0.2",