feat(cmd/loki): embed LogCLI into Loki image

[hainenber]

What this PR does / why we need it:
Embed LogCLI into Loki's Docker image for better DX.

Which issue(s) this PR fixes:
Fixes #11142

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

[cstyan]

I'm not sure this is something we'd want in the default image.

[trajano]

Thx for looking into it quickly. Hope to see a build soon.