fix: fix the docker driver build (backport release-3.3.x)

[trevorwhitney]

Backport 4d71ca3 from #15354

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What this PR does / why we need it:

#9247 did not seem to fix the docker driver build. It first failed because of the an incorrect prefix in the job definition, and after that was fixed it failed again because of an undefined env variable.

Depends on grafana/loki-release#165

Which issue(s) this PR fixes:
Fixes #5682, #15318

Checklist

• Reviewed the CONTRIBUTING.md guide (required)
• Documentation added
• Tests updated
• Title matches the required conventional commits format, see here
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• 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

[cyriltovena]

LGTM