Create conda-fail.yml on Conda CI failures

[edmundmiller]

          okay, please expand this in the todo, so people can figure out what it means 🙂

Originally posted by @mashehu in #6286 (comment)

Slack thread mentioned: https://nfcore.slack.com/archives/CJRH30T6V/p1724521923046009?thread_ts=1724406283.145319&cid=CJRH30T6V

Looking to add a file to the module if the conda-ci is failing and then we can skip the test. I also think askimed/nf-test#260 is what we really need.

Example failure in Bioconda: https://github.com/bioconda/bioconda-recipes/blob/master/recipes/rsem/build_failure.osx-64.yaml