helm: Apply extraLabels to post-delete hooks in teleport-kube-agent chart

[webvictim]

I wasn't sure whether we should only have an extraLabels.hooks{} object and apply this to all post-delete hooks, or propagate through extraLabels set on other resource types... so I did both. Alternative perspectives and/or comments on improvements very welcome.

Adds the extraLabels.job value to propagate labels through to the Job added by the teleport-kube-agent chart as a post-delete hook. Labels set on Role, RoleBinding and ServiceAccount will also be propagated to the post-delete hooks for those elements.

Fixes #43796

changelog: extraLabels configured in teleport-kube-agent chart values are now correctly propagated to post-delete hooks. A new extraLabels.job object has been added for labels which should only apply to the post-delete job.

[hugoShaka]

What about adding extraLabels.job instead of extraLabels.hooksso we can keep labeling things by type, regardless of the resources are part of the hooks or the long-lived release?

[webvictim]

What about adding extraLabels.job instead of extraLabels.hooksso we can keep labeling things by type

Good idea, this is better.

Implemented in 6646889

[hugoShaka]

You will need to re-render the docs with make -C examples/chart render-chart-ref

[github-actions]

🤖 Vercel preview here: https://docs-ikqlekli1-goteleport.vercel.app/docs/ver/preview

[public-teleport-github-review-bot]

@webvictim See the table below for backport results.

Branch	Result
branch/v14	Failed
branch/v15	Create PR
branch/v16	Create PR