build: update dependency fetch-mock to v7.5.1

Author: renovate-bot

package.json

@@ -17,7 +17,7 @@
     "babel-preset-env": "1.7.0",
     "coveralls": "3.0.6",
     "del": "5.1.0",
-    "fetch-mock": "7.4.0",
+    "fetch-mock": "7.5.1",
     "gulp": "3.9.1",
     "gulp-babel": "7.0.1",
     "gulp-rename": "1.4.0",

yarn.lock

@@ -3917,10 +3917,10 @@ fetch-ie8@^1.4.0:
   version "1.5.0"
   resolved "https://registry.yarnpkg.com/fetch-ie8/-/fetch-ie8-1.5.0.tgz#f1141c3f96cbc8937aa31b0fbc1a770220fbc15b"
 
-fetch-mock@7.4.0:
-  version "7.4.0"
-  resolved "https://registry.yarnpkg.com/fetch-mock/-/fetch-mock-7.4.0.tgz#34f2f5cca03de93af9b253ebb8a678b72563cb02"
-  integrity sha512-q2zrAJh2CcPf6yrDIRxAo18vs1yohETzTNVvtJsqznAAWS4XuJ5M8uaIfrw8odHm7wZJIfMdA6P3RObMNYSWXQ==
+fetch-mock@7.5.1:
+  version "7.5.1"
+  resolved "https://registry.yarnpkg.com/fetch-mock/-/fetch-mock-7.5.1.tgz#78fc8e4ffc7d7cdd6048b6e501f21be2db489352"
+  integrity sha512-yTb46p7y14bfyWCox50lYqs6NRSo7XPOKzsnLzrSOqRWAGLsvF+aAv0dPkTLeKaBeH3aVSVwWeXzMrctXEZVag==
   dependencies:
     babel-polyfill "^6.26.0"
     core-js "^2.6.9"