RFR: 7432: Update the spotbugs maven plugin [v2]

[Patrick Reinhart]

On Mon, 18 Oct 2021 18:17:20 GMT, Patrick Reinhart <reinhapa at openjdk.org> wrote:

>> Signed-off-by: Patrick Reinhart <patrick at reini.net>
>
> Patrick Reinhart has refreshed the contents of this pull request, and previous commits have been removed. The incremental views will show differences compared to the previous content of the PR.

I saw it, when running it locally. It also seems to have some issues with a lot of static methods returning static class variables, that in my opinion do not seem to be a problem as those `getInstance()` methods on a different plugin classes.

There seem to be already an issue opened on the spotbugs project. I will still check the other issues and include potential class changes within this PR later next week.

-------------

PR: https://git.openjdk.java.net/jmc/pull/324