Allow option to set labels on pods using kubernetes decorator

[ShantanuKumar]

We would like to add labels to pod generated using kubernetes decorator. I see there are some internal labels being set by Metaflow but we would like to pass some external ones too.

[savingoyal]

yes - this has been on our backlog. we had a PR that had to be rolled back due to some issues. stay tuned.

[ggutierrez545-ai]

Would this issue be one open to contributions? I've got a use case that requires setting both labels and annotations on the jobs that Metaflow creates.

After going through the source code, I believe I know what updates would need to be made to support those enhancements. Would be happy to put up a PR and work through that, if the team is interested. Not sure if this has already been handled (as the above comment somewhat suggests).