Bump @babel/plugin-transform-arrow-functions from 7.0.0 to 7.13.0

Bumps [@babel/plugin-transform-arrow-functions](https://github.com/babel/babel/tree/HEAD/packages/babel-plugin-transform-arrow-functions) from 7.0.0 to 7.13.0.
- [Release notes](https://github.com/babel/babel/releases)
- [Changelog](https://github.com/babel/babel/blob/main/CHANGELOG.md)
- [Commits](https://github.com/babel/babel/commits/v7.13.0/packages/babel-plugin-transform-arrow-functions)

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

package.json

@@ -24,7 +24,7 @@
     "@babel/core": "7.10.2",
     "@babel/plugin-proposal-class-properties": "7.0.0",
     "@babel/plugin-proposal-object-rest-spread": "7.0.0",
-    "@babel/plugin-transform-arrow-functions": "7.0.0",
+    "@babel/plugin-transform-arrow-functions": "7.13.0",
     "@babel/plugin-transform-async-to-generator": "7.0.0",
     "@babel/polyfill": "7.10.1",
     "@babel/preset-env": "7.10.2",