Bump spotbugs from 4.1.4 to 4.2.0 (#172)

Bumps [spotbugs](https://github.com/spotbugs/spotbugs) from 4.1.4 to 4.2.0.
- [Release notes](https://github.com/spotbugs/spotbugs/releases)
- [Changelog](https://github.com/spotbugs/spotbugs/blob/master/CHANGELOG.md)
- [Commits](spotbugs/spotbugs@4.1.4...4.2.0)

Signed-off-by: dependabot[bot] <support@github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

pom.xml

@@ -306,7 +306,7 @@ file comparators, endian transformation classes, and much more.
     <commons.surefire.version>3.0.0-M5</commons.surefire.version>
     <commons.japicmp.version>0.14.4</commons.japicmp.version>
     <spotbugs.plugin.version>4.1.4</spotbugs.plugin.version>
-    <spotbugs.impl.version>4.1.4</spotbugs.impl.version>    
+    <spotbugs.impl.version>4.2.0</spotbugs.impl.version>    
     <japicmp.skip>false</japicmp.skip>
     <!-- generate report even if there are binary incompatible changes -->
     <commons.japicmp.breakBuildOnBinaryIncompatibleModifications>false</commons.japicmp.breakBuildOnBinaryIncompatibleModifications>