docs: add in some notes on how to skip tests in the contributing docs #17925

[ckipp01]

[skip test]
[skip community_build]
[skip test_sbt]
[skip test_windows_fast]
[skip mima]

Rendered it looks like this:

[som-snytt]

I remember adding some of this info previously, mostly for my own benefit.

[ckipp01]

I remember adding some of this info previously, mostly for my own benefit.

Ahh, I didn't see it referenced anywhere else, so I totally could have missed them. If you do see where they are reference, please do let me know and I'll de-duplicate stuff 😆 . I added this for the same reason as you did, for my own benefit.

[som-snytt]

It must have been deleted.

a98af52