Bump fetch-mock from 9.3.1 to 9.4.0

Bumps [fetch-mock](https://github.com/wheresrhys/fetch-mock) from 9.3.1 to 9.4.0.
- [Release notes](https://github.com/wheresrhys/fetch-mock/releases)
- [Commits](https://github.com/wheresrhys/fetch-mock/compare/v9.3.1...v9.4.0)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

yarn.lock

@@ -3472,9 +3472,9 @@ fd-slicer@~1.0.1:
     pend "~1.2.0"
 
 fetch-mock@9:
-  version "9.3.1"
-  resolved "https://registry.yarnpkg.com/fetch-mock/-/fetch-mock-9.3.1.tgz#39685ed6aaa833580cc4e88c8282942950b9a5d5"
-  integrity sha512-zt2QUNYuR1kVCG8vGV+awxe/dtH/ufjpu2EA08v04eAVu3Rnt1P8Df8//VJrtxIx6tAdH+NHuCkb/Z69HUOT9A==
+  version "9.4.0"
+  resolved "https://registry.yarnpkg.com/fetch-mock/-/fetch-mock-9.4.0.tgz#9be073577bcfa57af714ca91f7536aff8450ec88"
+  integrity sha512-tqnFmcjYheW5Z9zOPRVY+ZXjB/QWCYtPiOrYGEsPgKfpGHco97eaaj7Rv9MjK7PVWG4rWfv6t2IgQAzDQizBZA==
   dependencies:
     babel-runtime "^6.26.0"
     core-js "^3.0.0"