feat(helm): Expose labels on volumeClaimTemplates

[jkroepke]

What this PR does / why we need it:

Velero resource filter based on labels.

https://velero.io/docs/main/resource-filtering/

In my use-case I want to exclude PVC from writer nodes (only used as WAL) from backup.

Which issue(s) this PR fixes: Fixes #

Special notes for your reviewer:

Checklist

• [x] Reviewed the CONTRIBUTING.md guide (required)
• [x] Documentation added
• [ ] Tests updated
• [x] Title matches the required conventional commits format, see here
  • Note that Promtail is considered to be feature complete, and future development for logs collection will be in Grafana Alloy. As such, feat PRs are unlikely to be accepted unless a case can be made for the feature actually being a bug fix to existing behavior.
• [ ] Changes that require user attention or interaction to upgrade are documented in docs/sources/setup/upgrade/_index.md
• [x] For Helm chart changes bump the Helm chart version in production/helm/loki/Chart.yaml and update production/helm/loki/CHANGELOG.md and production/helm/loki/README.md. Example PR
• [ ] If the change is deprecating or removing a configuration option, update the deprecated-config.yaml and deleted-config.yaml files respectively in the tools/deprecated-config-checker directory. Example PR

[jkroepke]

rebased

[jkroepke]

updated

[jkroepke]

merged from main

[QuentinBisson]

@jkroepke could you please resolve the conflicts and take a look at my comments?

[jkroepke]

Done 👍

[QuentinBisson]

Nice work @jkroepke.

LGTM

[QuentinBisson]

@JStickler we're good with this one