chore(deps): update helm release cloudnative-pg to 0.21.5

[renovate[bot]]

This PR contains the following updates:

Package	Update	Change
cloudnative-pg (source)	patch	0.21.2 -> 0.21.5

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Release Notes

cloudnative-pg/charts (cloudnative-pg)

### [`v0.21.5`](https://togithub.com/cloudnative-pg/charts/releases/tag/cloudnative-pg-v0.21.5) [Compare Source](https://togithub.com/cloudnative-pg/charts/compare/cloudnative-pg-v0.21.4...cloudnative-pg-v0.21.5) CloudNativePG Operator Helm Chart #### What's Changed - chore(deps): update actions/checkout action to v4.1.7 by [@​renovate](https://togithub.com/renovate) in [https://github.com/cloudnative-pg/charts/pull/318](https://togithub.com/cloudnative-pg/charts/pull/318) - Release cloudnative-pg-v0.21.5 by [@​github-actions](https://togithub.com/github-actions) in [https://github.com/cloudnative-pg/charts/pull/315](https://togithub.com/cloudnative-pg/charts/pull/315) **Full Changelog**: https://github.com/cloudnative-pg/charts/compare/cloudnative-pg-v0.21.4...cloudnative-pg-v0.21.5 ### [`v0.21.4`](https://togithub.com/cloudnative-pg/charts/releases/tag/cloudnative-pg-v0.21.4) [Compare Source](https://togithub.com/cloudnative-pg/charts/compare/cloudnative-pg-v0.21.3...cloudnative-pg-v0.21.4) CloudNativePG Operator Helm Chart #### What's Changed - fix additionalEnv typo in deployment.yaml by [@​Stevenpc3](https://togithub.com/Stevenpc3) in [https://github.com/cloudnative-pg/charts/pull/305](https://togithub.com/cloudnative-pg/charts/pull/305) **Full Changelog**: https://github.com/cloudnative-pg/charts/compare/cloudnative-pg-v0.21.3...cloudnative-pg-v0.21.4 ### [`v0.21.3`](https://togithub.com/cloudnative-pg/charts/releases/tag/cloudnative-pg-v0.21.3) [Compare Source](https://togithub.com/cloudnative-pg/charts/compare/cloudnative-pg-v0.21.2...cloudnative-pg-v0.21.3) CloudNativePG Operator Helm Chart #### What's Changed - Add 'additionalEnvVars' to the chart by [@​Stevenpc3](https://togithub.com/Stevenpc3) in [https://github.com/cloudnative-pg/charts/pull/303](https://togithub.com/cloudnative-pg/charts/pull/303) #### New Contributors - [@​Stevenpc3](https://togithub.com/Stevenpc3) made their first contribution in [https://github.com/cloudnative-pg/charts/pull/303](https://togithub.com/cloudnative-pg/charts/pull/303) **Full Changelog**: https://github.com/cloudnative-pg/charts/compare/cloudnative-pg-v0.21.2...cloudnative-pg-v0.21.3

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