fix(deps): update dependency mrhorse to v6

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
mrhorse	dependencies	major	3.0.1 -> 6.0.1

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Release Notes

mark-bradshaw/mrhorse

### [`v6.0.1`](https://togithub.com/mark-bradshaw/mrhorse/compare/v6.0.0...v6.0.1) [Compare Source](https://togithub.com/mark-bradshaw/mrhorse/compare/v6.0.0...v6.0.1) ### [`v6.0.0`](https://togithub.com/mark-bradshaw/mrhorse/releases/v6.0.0) [Compare Source](https://togithub.com/mark-bradshaw/mrhorse/compare/v5.0.1...v6.0.0) Hapi 19 requires Node v12 or higher. If you have an older version of node you should stay with v5 of MrHorse. ### [`v5.0.1`](https://togithub.com/mark-bradshaw/mrhorse/releases/v5.0.1) [Compare Source](https://togithub.com/mark-bradshaw/mrhorse/compare/v5.0.0...v5.0.1) Updating to correct a security fix. ### [`v5.0.0`](https://togithub.com/mark-bradshaw/mrhorse/releases/v5.0.0) [Compare Source](https://togithub.com/mark-bradshaw/mrhorse/compare/v4.0.1...v5.0.0) Due to dependency updates you should only use this with Node version 10 or greater. ### [`v4.0.1`](https://togithub.com/mark-bradshaw/mrhorse/releases/v4.0.1) [Compare Source](https://togithub.com/mark-bradshaw/mrhorse/compare/v4.0.0...v4.0.1) Updating dependencies to correct security issues. ### [`v4.0.0`](https://togithub.com/mark-bradshaw/mrhorse/releases/v4.0.0) [Compare Source](https://togithub.com/mark-bradshaw/mrhorse/compare/v3.0.1...v4.0.0) This update is mostly about fixing dependencies. Hapi scoped all the core modules, so to keep up with latest we need to change those dependency names. This also was a good opportunity to remove unused dependencies and update anything that was out of date or had security issues. Thanks to [@​robmcguinness](https://togithub.com/robmcguinness)!

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