Spotbugs-maven-plugin 4.4.2.1 Release

• Reworked version string to account for any patches we need to make to plugin that would otherwise case a diverge from spotbugs or require us to wait. This is similar to how other plugins approach this such as lombok. The first 3 positions are reserved for the alignment with spotbugs. The last position is for our patch revision level. Normally this would be '0' but given we released 4.4.2 already, it made sense to denote '1' so that it was clear there was a difference.
• This patch release addresses issues with resolution of the maven dependencies that resulted in a few regression libraries that had vulnerabilities.
• This patch further changed lowest maven from 3.2.5 to 3.3.9 but reality is that even 3.3.9 likely doesn't work. Since all maven before 3.8.1 are vulnerable, most should be there. If not, let us know. Future releases will raise that revision number up.