build: update dependency fetch-mock to v9.1.0

Author: renovate-bot

package.json

@@ -17,7 +17,7 @@
     "babel-preset-env": "1.7.0",
     "coveralls": "3.0.9",
     "del": "5.1.0",
-    "fetch-mock": "9.0.0",
+    "fetch-mock": "9.1.0",
     "gulp": "3.9.1",
     "gulp-babel": "7.0.1",
     "gulp-rename": "2.0.0",

yarn.lock

@@ -3985,15 +3985,16 @@ 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@9.0.0:
-  version "9.0.0"
-  resolved "https://registry.yarnpkg.com/fetch-mock/-/fetch-mock-9.0.0.tgz#0174913da7a9411fc820529868c188aad49a3f3a"
-  integrity sha512-Nr7vPs0CdkhHiet0E9upniEAcHCb9liTNFtXtsphi3xKmkdllVIBDqcPwvIzS+wqjJMePs6BMNolLdQd0/+qAg==
+fetch-mock@9.1.0:
+  version "9.1.0"
+  resolved "https://registry.yarnpkg.com/fetch-mock/-/fetch-mock-9.1.0.tgz#13527b5f33956359e961f0c1f7aa8d92c4d37d8a"
+  integrity sha512-s6mHgPwAdoQ1EDWFkPOD6vmhN1Pmp87csGO+3B91MRh/EdkVFKYIyDNQO1YaJv6TnaAI4qiJY5Gq/5h/i2yXNg==
   dependencies:
     babel-runtime "^6.26.0"
     core-js "^3.0.0"
     debug "^4.1.1"
     glob-to-regexp "^0.4.0"
+    is-subset "^0.1.1"
     lodash.isequal "^4.5.0"
     path-to-regexp "^2.2.1"
     querystring "^0.2.0"