Add Spotbugs back in

[seadowg]

We recently had to remove Spotbugs because of an issue on their side. We should see if this is something we can work around or if not wait for a fix.

[SaumiaSinghal]

Hi @seadowg! I would like to look into it.

[SaumiaSinghal]

@opendatakit-bot claim

[seadowg]

@SaumiaSinghal ooops I left out that it was removed in #3728 so good to use that as a starting point rather than master

[getodk-bot]

Hello @SaumiaSinghal, you have been unassigned from this issue because you have not updated this issue or any referenced pull requests for over 15 days.

You can reclaim this issue or claim any other issue by commenting @opendatakit-bot claim on that issue.

Thanks for your contributions, and hope to see you again soon!

[grzesiek2010]

Spotbugs does not work well with kotlin so now as we add all the new code using kotlin I think it doesn't make sense to add spotbugs back.