chore(deps): update helm/chart-testing-action action to v2.2.1

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
helm/chart-testing-action	action	patch	v2.2.0 -> v2.2.1

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Release Notes

helm/chart-testing-action

### [`v2.2.1`](https://togithub.com/helm/chart-testing-action/releases/v2.2.1) [Compare Source](https://togithub.com/helm/chart-testing-action/compare/v2.2.0...v2.2.1) ##### What's Changed - fix: target main branch by default in the example by [@​lemeurherve](https://togithub.com/lemeurherve) in [https://github.com/helm/chart-testing-action/pull/75](https://togithub.com/helm/chart-testing-action/pull/75) - update ct to use release v3.5.1 by [@​cpanato](https://togithub.com/cpanato) in [https://github.com/helm/chart-testing-action/pull/80](https://togithub.com/helm/chart-testing-action/pull/80) ##### New Contributors - [@​lemeurherve](https://togithub.com/lemeurherve) made their first contribution in [https://github.com/helm/chart-testing-action/pull/75](https://togithub.com/helm/chart-testing-action/pull/75) **Full Changelog**: https://github.com/helm/chart-testing-action/compare/v2.2.0...v2.2.1

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