LOG-7889: Fields not getting pruned for loki output

[Clee2691]

Description

This PR decouples Lokistack labels from Loki.

For Lokistack:

• App and infra logs will include log type, host, and container labels along with their Otel equivalents.
• Audit logs will NOT include container labels but will include log type and host labels along with their Otel equivalents.

For Loki:

• log type, host, and container labels will be added by default without their Otel equivalents if no LabelKeys are defined.

/cc @cahartma @vparfonov
/assign @jcantrill

Links

• JIRA: https://issues.redhat.com/browse/LOG-7889

[openshift-ci-robot]

@Clee2691: This pull request references LOG-7889 which is a valid jira issue.

Warning: The referenced jira issue has an invalid target version for the target branch this PR targets: expected the bug to target the "4.8.0" version, but no target version was set.

In response to this:

Description

This PR decouples Lokistack labels from Loki.

For Lokistack:

• App and infra logs will include log type, host, and container labels along with their Otel equivalents.
• Audit logs will NOT include container labels but will include log type and host labels along with their Otel equivalents.

For Loki:

• log type, host, and container labels will be added by default without their Otel equivalents if no LabelKeys are defined.

/cc @cahartma @vparfonov
/assign @jcantrill

Links

• JIRA: https://issues.redhat.com/browse/LOG-7889

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[openshift-ci]

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[Clee2691]

/test all

[openshift-ci]

@Clee2691: all tests passed!

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[openshift-merge-robot]

PR needs rebase.

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