Bump com.github.spotbugs.snom:spotbugs-gradle-plugin from 5.2.5 to 6.0.8

Bumps [com.github.spotbugs.snom:spotbugs-gradle-plugin](https://github.com/spotbugs/spotbugs-gradle-plugin) from 5.2.5 to 6.0.8.
- [Release notes](https://github.com/spotbugs/spotbugs-gradle-plugin/releases)
- [Commits](spotbugs/spotbugs-gradle-plugin@5.2.5...6.0.8)

---
updated-dependencies:
- dependency-name: com.github.spotbugs.snom:spotbugs-gradle-plugin
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

build.gradle

@@ -26,7 +26,7 @@ wrapper {
 ext {
  animalsnifferVersion = '1.7.1'
  cpdVersion = '3.3'
- spotbugsPluginVersion = '5.2.5'
+ spotbugsPluginVersion = '6.0.8'
  docVersion = '5.0.0'
 }