feat(helm): allow configuring service types

[jkroepke]

What this PR does / why we need it:
Allows the service type to be configured via values.yaml. In the case of an Ingress that relies on NodePort Services, the Ingress will not be able to reconcile, which can cause problems for other workloads sharing the Ingress group.

Which issue(s) this PR fixes:
Fixes #13028

Special notes for your reviewer:

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

[jkroepke]

@QuentinBisson 👀

[QuentinBisson]

LGTM

[Jayclifford345]

LGTM