Is your feature request related to a problem? Please describe.

Feature request

Describe the solution you'd like

We'd like to see support added to the fluentd output plugin for structured metadata, similarly to how it was done for fluent-bit out_loki

Describe alternatives you've considered

Switching to fluent-bit, however we rely on some functionality in fluentd that is not trivial and in some cases impossible to migrate to fluent-bit, so we think introducing feature parity to the two outputs would be great for users of both platforms (fluentd & fluent-bit)

Additional context

N/A