chore(deps): update commitlint monorepo to v7.4.0

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change	References
@​commitlint/cli	devDependencies	minor	7.3.2 -> 7.4.0	source
@​commitlint/travis-cli	devDependencies	minor	7.3.2 -> 7.4.0	source

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Release Notes

marionebl/commitlint

### [`v7.4.0`](https://togithub.com/marionebl/commitlint/blob/master/CHANGELOG.md#​740httpsgithubcommarioneblcommitlintcomparev732v740-2019-01-27) [Compare Source](https://togithub.com/marionebl/commitlint/compare/v7.3.2...v7.4.0) ##### Bug Fixes - correction to need help link ([#​540](https://togithub.com/marionebl/commitlint/issues/540)) ([fa6168a](https://togithub.com/marionebl/commitlint/commit/fa6168a)) ##### Features - **rules:** create header-case and header-full-stop rules ([#​547](https://togithub.com/marionebl/commitlint/issues/547)) ([4c36cbd](https://togithub.com/marionebl/commitlint/commit/4c36cbd)) #### [7.3.2](https://togithub.com/marionebl/commitlint/compare/v7.3.1...v7.3.2) (2019-01-15) ##### Bug Fixes - move loadsh to dependencies ([1bb66a4](https://togithub.com/marionebl/commitlint/commit/1bb66a4)) #### [7.3.1](https://togithub.com/marionebl/commitlint/compare/v7.3.0...v7.3.1) (2019-01-11) **Note:** Version bump only for package [@​commitlint/root](https://togithub.com/commitlint/root)

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[Arcanemagus]

:tada: This PR is included in version 1.6.13 :tada:

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