fix: Add missing Helm helper loki.hpa.apiVersion

[mattgialelis]

What this PR does / why we need it:
Currently the 6.3.3 and 6.2.2. helm charts when trying to enable the Horizontal Pod Autoscaler for the Distributed deployment type fails due to the missing loki.hpa.apiVersion which is required for the the Helm chart to template/install making it un-useable for large scale deployments with the need for autoscaling

Error that is fixed by this PR

Error:

template: loki/templates/query-frontend/hpa.yaml:3:19: executing "loki/templates/query-frontend/hpa.yaml" at <include "loki.hpa.apiVersion" .>: error calling include: template: no template "loki.hpa.apiVersion" associated with template "gotpl"

Which issue(s) this PR fixes:

Fixes #12716

Special notes for your reviewer:

Had to recreate this pr, the rebase i did on my fork broke the last branch and PR, sry

Checklist

• Reviewed the CONTRIBUTING.md guide (required)
• Documentation added
• Tests updated
• Title matches the required conventional commits format, see here
• Changes that require user attention or interaction to upgrade are documented in docs/sources/setup/upgrade/_index.md
• 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

[mattgialelis]

Any update on how i can get this merged in ? Is sadly stopping me from moving to loki 3.0 and away from the loki-distributed helm chart

[mattgialelis]

@JStickler Any ideas on the process to get his merged in please :)

[MichelHollands]

lgtm