Update dependency metro-config to v0.55.0 - autoclosed

Thalia Technicie
2019-07-07T21:51:08+02:00

This MR contains the following updates: | Package | Type | Update | Change | |---|---|---|---| | [metro-config](https://github.com/facebook/metro) | dependencies | minor | [`0.54.1` -> `0.55.0`](https://renovatebot.com/diffs/npm/metro-c...

metro-config | dependencies | minor | 0.54.1 -> 0.55.0