chore(deps): update dependency concurrently to v5

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
concurrently	devDependencies	major	^4.1.2 -> ^5.0.0

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Release Notes

kimmobrunfeldt/concurrently

### [`v5.0.0`](https://togithub.com/kimmobrunfeldt/concurrently/releases/v5.0.0) [Compare Source](https://togithub.com/kimmobrunfeldt/concurrently/compare/v4.1.2...v5.0.0) ### Breaking changes - Timestamp formatting library [`date-fns` was upgraded to v2.0.0](https://togithub.com/date-fns/date-fns/blob/master/CHANGELOG.md#​200---2019-08-20) ([#​196](https://togithub.com/kimmobrunfeldt/concurrently/issues/196)) ### Other changes - Kill child processes on `SIGHUP` ([#​193](https://togithub.com/kimmobrunfeldt/concurrently/issues/193), [#​195](https://togithub.com/kimmobrunfeldt/concurrently/issues/195))

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