chore(deps): update dependency helm-unittest/helm-unittest to v0.4.0

[renovate[bot]]

This PR contains the following updates:

Package	Update	Change
helm-unittest/helm-unittest	minor	v0.3.6 -> v0.4.0

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Release Notes

helm-unittest/helm-unittest (helm-unittest/helm-unittest)

### [`v0.4.0`](https://togithub.com/helm-unittest/helm-unittest/releases/tag/v0.4.0) [Compare Source](https://togithub.com/helm-unittest/helm-unittest/compare/v0.3.6...v0.4.0) **Added Features** - Added DocumentSelecter (credits [@​jonathon-mcnabb](https://togithub.com/jonathon-mcnabb), resolve [#​179](https://togithub.com/helm-unittest/helm-unittest/issues/179)) **Improvements** - Remove trim copying logging (resolves [#​237](https://togithub.com/helm-unittest/helm-unittest/issues/237), resolves [#​260](https://togithub.com/helm-unittest/helm-unittest/issues/260)) **Fixes** - Correct find subchart template files if filename includes chart name (resolves [#​238](https://togithub.com/helm-unittest/helm-unittest/issues/238)) - Correct containsDocument validation (resolves [#​239](https://togithub.com/helm-unittest/helm-unittest/issues/239)) **Updates** - Update packages to latest patch versions (resolves [#​260](https://togithub.com/helm-unittest/helm-unittest/issues/260)) - Update json schema (credits [@​justusbunsi](https://togithub.com/justusbunsi)) - Update documentation (credits [@​atombrella](https://togithub.com/atombrella))

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