:seedling: Update github-actions group (major)

[cluster-stack-bot[bot]]

This PR contains the following updates:

Package	Type	Update	Change
docker/build-push-action	action	major	v5 -> v6
docker/build-push-action	action	major	v5.4.0 -> v6.0.0

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[!WARNING] Some dependencies could not be looked up. Check the Dependency Dashboard for more information.

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Release Notes

docker/build-push-action (docker/build-push-action)

### [`v6`](https://togithub.com/docker/build-push-action/compare/v5...v6) [Compare Source](https://togithub.com/docker/build-push-action/compare/v5...v6)

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