fix(helm): Split ingester HPA when zoneAwareReplication is enabled

[Kellen275]

What this PR does / why we need it:
When running a distributed Loki with zone aware replication. The ingester HPA is not configured to properly locate the 3 zoned ingester StatefulSets. This MR adds zoned HPAs similar to how the existing ingester headless service and statefulsets are handled.

Which issue(s) this PR fixes:
Fixes #14021

Special notes for your reviewer:
This MR simply copies the existing hpa.yaml into 3 zoned yamls, and updates 3 lines

1. Line 2, to verify zoneAwareReplication is enabled
2. metadata.name to append the -zone-{a|b|c} suffix
3. spec.scaleTargetRef.name to append the -zone-{a|b|c} suffix

We also update the hpa.yaml to not deploy when zoneAwareReplication is enabled (following the same pattern seen in service-ingester-headless.yaml

Checklist

• Reviewed the CONTRIBUTING.md guide (required)
• Documentation added
• Tests updated
• 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
• 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

[CLAassistant]

All committers have signed the CLA.

[github-actions]

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