chore(deps): update helm/chart-testing-action action to v2.8.0

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
helm/chart-testing-action	action	minor	v2.6.1 → v2.8.0

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Release Notes

helm/chart-testing-action (helm/chart-testing-action)

v2.8.0

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What's Changed

• Bump the actions group across 1 directory with 4 updates by @​dependabot[bot] in #​171
• Fix the broken link for GitHub Help Documentation by @​subramani95 in #​174
• bump ct and yamale version by @​cpanato in #​178
• Bump actions/checkout from 4.2.2 to 5.0.0 by @​dependabot[bot] in #​181
• Bump actions/setup-python from 5.4.0 to 6.0.0 by @​dependabot[bot] in #​179
• Bump the actions group across 1 directory with 2 updates by @​dependabot[bot] in #​183
• Use uv instead of python venv by @​nikolaik in #​172
• Bump sigstore/cosign-installer from 3.8.1 to 4.0.0 by @​dependabot[bot] in #​184

New Contributors

• @​subramani95 made their first contribution in #​174
• @​nikolaik made their first contribution in #​172

Full Changelog: helm/chart-testing-action@v2...v2.8.0

v2.7.0

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For ct change see https://github.com/helm/chart-testing/releases/tag/v3.12.0

What's Changed

• docs: update all version references to latest versions by @​froblesmartin in #​141
• update ct to v3.11.0 / yamlint to 1.33.0 / yamale to 4.0.4 / add e2e test by @​cpanato in #​144
• use ct 3.12.0 as default by @​cpanato in #​165
• clean up and fix cr action next release by @​cpanato in #​166

New Contributors

• @​froblesmartin made their first contribution in #​141

Full Changelog: helm/chart-testing-action@v2.6.1...v2.7.0

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