[release-2.9.x] chore(promtail): Use minimal init config in rpm/deb packaging.

[grafanabot]

Backport 86f2001 from #11511

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What this PR does / why we need it:
Related issue: #11398

This minimal config scrape only single file thus not overloading the systems as described in the issue

Which issue(s) this PR fixes:
Fixes #

Special notes for your reviewer:

Checklist

• Reviewed the CONTRIBUTING.md guide (required)
• Documentation added
• Tests updated
• CHANGELOG.md updated
  • If the change is worth mentioning in the release notes, add add-to-release-notes label
• 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

[janfickler]

any updates on this ?

[poyzannur]

Hi @janfickler, working on getting this out this week.

[janfickler]

@poyzannur there is still no new version 2.9.4 released ?

[poyzannur]

Hi @janfickler, you might already seen 2.9.4 (releases) is out. Apologies for the wait, thanks for your patience.

[janfickler]

@poyzannur, yes but it seems that it is not available in the official Grafana-RPM-Repository or Grafana-DEV-Repository.

Or maybe it was currently not packaged and pushed ?

we use for our rpm-based systems - https://packages.grafana.com/oss/rpm - and there is currently only version 2.9.3 available. And our intention was installing the RPM and not the binary files from - https://github.com/grafana/loki/releases/tag/v2.9.4