chore(deps): update dependency @types/node-fetch to v2.5.4

Author: renovate-bot

package.json

@@ -88,7 +88,7 @@
     "@types/mocha": "5.2.7",
     "@types/mongodb": "3.1.10",
     "@types/node": "9.6.55",
-    "@types/node-fetch": "2.5.3",
+    "@types/node-fetch": "2.5.4",
     "@types/object-hash": "1.3.1",
     "@types/redis": "2.8.6",
     "@types/source-map-support": "0.5.1",

yarn.lock

@@ -490,13 +490,7 @@
     "@types/bson" "*"
     "@types/node" "*"
 
-"@types/node-fetch@2.5.3":
-  version "2.5.3"
-  resolved "https://registry.yarnpkg.com/@types/node-fetch/-/node-fetch-2.5.3.tgz#b84127facd93642b1fb6439bc630ba0612e3ec50"
-  dependencies:
-    "@types/node" "*"
-
-"@types/node-fetch@^2.3.7":
+"@types/node-fetch@2.5.4", "@types/node-fetch@^2.3.7":
   version "2.5.4"
   resolved "https://registry.yarnpkg.com/@types/node-fetch/-/node-fetch-2.5.4.tgz#5245b6d8841fc3a6208b82291119bc11c4e0ce44"
   dependencies: