Update node-fetch

package.json

@@ -90,7 +90,7 @@
     "isbinaryfile": "3.0.3",
     "lodash": "4.17.10",
     "md5": "2.2.1",
-    "node-fetch": "1.6.3",
+    "node-fetch": "2.2.0",
     "regenerator-runtime": "0.12.1",
     "rimraf": "2.6.2",
     "semver": "5.5.1",

yarn.lock

@@ -3880,7 +3880,7 @@ is-retry-allowed@^1.0.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/is-retry-allowed/-/is-retry-allowed-1.1.0.tgz#11a060568b67339444033d0125a61a20d564fb34"
 
-is-stream@^1.0.0, is-stream@^1.0.1, is-stream@^1.1.0:
+is-stream@^1.0.0, is-stream@^1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/is-stream/-/is-stream-1.1.0.tgz#12d4a3dd4e68e0b79ceb8dbc84173ae80d91ca44"
 
@@ -4924,12 +4924,9 @@ node-fetch-npm@^2.0.2:
     json-parse-better-errors "^1.0.0"
     safe-buffer "^5.1.1"
 
-[email protected]:
-  version "1.6.3"
-  resolved "https://registry.yarnpkg.com/node-fetch/-/node-fetch-1.6.3.tgz#dc234edd6489982d58e8f0db4f695029abcd8c04"
-  dependencies:
-    encoding "^0.1.11"
-    is-stream "^1.0.1"
+[email protected]:
+  version "2.2.0"
+  resolved "https://registry.yarnpkg.com/node-fetch/-/node-fetch-2.2.0.tgz#4ee79bde909262f9775f731e3656d0db55ced5b5"
 
 node-gyp@^3.8.0:
   version "3.8.0"