fix: Fix indentation for query_range config

[dploeger]

What this PR does / why we need it:

Fixes an indentation problem in the helm configuration for query_range

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

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[dploeger]

I haven't updated the chart tests as they seem to be umaintaned anyways. Should I add a test for this bug?