RM-33-migrate-from-nose-to-pytest

[ryantimjohn]

Migrate from nose to pytest

Additionally upgrade from deprecated convenience images as outlined here:
https://bluelabsio.atlassian.net/jira/software/projects/RM/boards/3?selectedIssue=RM-6

[Brunope]

Not sure about the pandas thing, I'd prefer if we didn't change anything related to pandas versioning in this pull request in order to minimize possible breakage.

[Brunope]

On second thought, I'm okay with removing the versioning constraint on pandas. But I do still think it belongs in requirements.txt, because it definitely is a development requirement.

[ryantimjohn]

Agree with having pandas version explicit in the reqs; I started this off of a branch where I was working on python 3.11 compatibility and those changes aren't relevant to the goal of moving to pytest!

As for explicit pandas versioning, I think I know why things are that way. Around 1.2, pandas mistakenly added an infinite recursion problem that very rarely came up, except in records mover. =) So we had a bunch of people in the #help channel asking about it. Pandas 1.1.5 and 1.4 got rid of the error, so I think now we can just allow people to build off the most modern version. /But/, will leave that change for trying to upgrade to allowing Python 3.11.

[ryantimjohn]

@Brunope made requested changes, let me know if anything else needed!