Bump electron from 9.0.0 to 9.4.0

Bumps [electron](https://github.com/electron/electron) from 9.0.0 to 9.4.0.
- [Release notes](https://github.com/electron/electron/releases)
- [Changelog](https://github.com/electron/electron/blob/master/docs/breaking-changes.md)
- [Commits](electron/electron@v9.0.0...v9.4.0)

Signed-off-by: dependabot[bot] <support@github.com>

yarn.lock

@@ -4027,9 +4027,9 @@ electron-to-chromium@^1.3.413:
   integrity sha512-IQbCfjJR0NDDn/+vojTlq7fPSREcALtF8M1n01gw7nQghCtfFYrJ2dfhsp8APr8bANoFC8vRTFVXMOGpT0eetw==
 
 electron@^9.0.0:
-  version "9.0.0"
-  resolved "https://registry.yarnpkg.com/electron/-/electron-9.0.0.tgz#335cd426a8a542ad8d4c96c0c40a8668ab5527b8"
-  integrity sha512-JsaSQNPh+XDYkLj8APtVKTtvpb86KIG57W5OOss4TNrn8L3isC9LsCITwfnVmGIXHhvX6oY/weCtN5hAAytjVg==
+  version "9.4.0"
+  resolved "https://registry.yarnpkg.com/electron/-/electron-9.4.0.tgz#c3c607e3598226ddbaaff8babcdffa8bb2210936"
+  integrity sha512-hOC4q0jkb+UDYZRy8vrZ1IANnq+jznZnbkD62OEo06nU+hIbp2IrwDRBNuSLmQ3cwZMVir0WSIA1qEVK0PkzGA==
   dependencies:
     "@electron/get" "^1.0.1"
     "@types/node" "^12.0.12"