Update dependency concurrently to v6

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
concurrently	5.3.0 -> 6.0.2

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Release Notes

kimmobrunfeldt/concurrently

### [`v6.0.2`](https://togithub.com/kimmobrunfeldt/concurrently/releases/v6.0.2) [Compare Source](https://togithub.com/kimmobrunfeldt/concurrently/compare/v6.0.1...v6.0.2) - Fix `--handle-input` when input contains a colon ([#​269](https://togithub.com/kimmobrunfeldt/concurrently/issues/269)) - Update lodash to fix a vulnerability ([#​270](https://togithub.com/kimmobrunfeldt/concurrently/issues/270), [#​271](https://togithub.com/kimmobrunfeldt/concurrently/issues/271)) ### [`v6.0.1`](https://togithub.com/kimmobrunfeldt/concurrently/releases/v6.0.1) [Compare Source](https://togithub.com/kimmobrunfeldt/concurrently/compare/v6.0.0...v6.0.1) - Fix cwd option not overwriting per command if specified in programmatic API ([#​266](https://togithub.com/kimmobrunfeldt/concurrently/issues/266), [#​268](https://togithub.com/kimmobrunfeldt/concurrently/issues/268)) ### [`v6.0.0`](https://togithub.com/kimmobrunfeldt/concurrently/releases/v6.0.0) [Compare Source](https://togithub.com/kimmobrunfeldt/concurrently/compare/v5.3.0...v6.0.0) - **BREAKING CHANGE:** Dropped support for Node 8 ([#​244](https://togithub.com/kimmobrunfeldt/concurrently/issues/244)) - `prefixColors` option now accepts HEX colors ([#​260](https://togithub.com/kimmobrunfeldt/concurrently/issues/260), [#​261](https://togithub.com/kimmobrunfeldt/concurrently/issues/261)) - Added `cwd` option to programmatic API ([#​216](https://togithub.com/kimmobrunfeldt/concurrently/issues/216), [#​246](https://togithub.com/kimmobrunfeldt/concurrently/issues/246))

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