chore(deps): update dependency grunt-ts to v6.0.0-beta.22

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change	References
grunt-ts	devDependencies	patch	6.0.0-beta.21 -> 6.0.0-beta.22	source

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Release Notes

TypeStrong/grunt-ts

### [`v6.0.0-beta.22`](https://togithub.com/TypeStrong/grunt-ts/blob/master/CHANGELOG.md#v600-beta22) [Compare Source](https://togithub.com/TypeStrong/grunt-ts/compare/v6.0.0-beta.21...6ccd3adb7bf61e2a724ab755a1bc509d8a2a7761) - FIX: Loosen Grunt peer dependency to any 1.0 version. Thanks for the PR [@​danielrentz](https://togithub.com/danielrentz). ([#​431](https://togithub.com/TypeStrong/grunt-ts/issues/431))

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