fix: querier address in SingleBinary mode

[wrdls]

What this PR does / why we need it:

Fix loki.querierAddress helper distributed check.

The current if statement effectively checks if the string is non-empty.

Which issue(s) this PR fixes:
Fixes #12772
Fixes #12586

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
• 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

[slim-bean]

this LGTM, sorry we missed it and looks like it needs to be updated before we can merge. Could you update it (likely just the version number needs a bump)

[wrdls]

Hi @slim-bean. Thanks for reviewing this.

Could you update it (likely just the version number needs a bump)

It's not clear to me what needs to happen. Do you mean the version in Chart.yaml?