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	minor	v2.1.0 -> 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 ### [`v2.2.0`](https://togithub.com/helm/chart-testing-action/releases/v2.2.0) [Compare Source](https://togithub.com/helm/chart-testing-action/compare/v2.1.0...v2.2.0) #### What's Changed - docs: bump version of the action in README.md by [@​dunglas](https://togithub.com/dunglas) in [https://github.com/helm/chart-testing-action/pull/71](https://togithub.com/helm/chart-testing-action/pull/71) - docs: update kind-action version in README by [@​hairmare](https://togithub.com/hairmare) in [https://github.com/helm/chart-testing-action/pull/72](https://togithub.com/helm/chart-testing-action/pull/72) - Update ct to 3.50 by [@​cpanato](https://togithub.com/cpanato) in [https://github.com/helm/chart-testing-action/pull/78](https://togithub.com/helm/chart-testing-action/pull/78) #### New Contributors - [@​dunglas](https://togithub.com/dunglas) made their first contribution in [https://github.com/helm/chart-testing-action/pull/71](https://togithub.com/helm/chart-testing-action/pull/71) - [@​hairmare](https://togithub.com/hairmare) made their first contribution in [https://github.com/helm/chart-testing-action/pull/72](https://togithub.com/helm/chart-testing-action/pull/72) - [@​cpanato](https://togithub.com/cpanato) made their first contribution in [https://github.com/helm/chart-testing-action/pull/78](https://togithub.com/helm/chart-testing-action/pull/78) **Full Changelog**: https://github.com/helm/chart-testing-action/compare/v2.1.0...v2.2.0

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