Update helm/chart-testing-action action to v2.3.1

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
helm/chart-testing-action	action	patch	v2.3.0 -> v2.3.1

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Release Notes

helm/chart-testing-action

### [`v2.3.1`](https://togithub.com/helm/chart-testing-action/releases/tag/v2.3.1) [Compare Source](https://togithub.com/helm/chart-testing-action/compare/v2.3.0...v2.3.1) #### What's Changed - bump ct to v3.7.1 by [@​cpanato](https://togithub.com/cpanato) in [https://github.com/helm/chart-testing-action/pull/96](https://togithub.com/helm/chart-testing-action/pull/96) **Full Changelog**: https://github.com/helm/chart-testing-action/compare/v2.3.0...v2.3.1

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Configuration

📅 Schedule: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

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• [ ] If you want to rebase/retry this PR, click this checkbox.

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