Bump com.github.spotbugs:spotbugs from 4.8.6 to 4.9.0

Bumps [com.github.spotbugs:spotbugs](https://github.com/spotbugs/spotbugs) from 4.8.6 to 4.9.0.
- [Release notes](https://github.com/spotbugs/spotbugs/releases)
- [Changelog](https://github.com/spotbugs/spotbugs/blob/master/CHANGELOG.md)
- [Commits](spotbugs/spotbugs@4.8.6...4.9.0)

---
updated-dependencies:
- dependency-name: com.github.spotbugs:spotbugs
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

build.gradle.kts

@@ -160,7 +160,7 @@ dependencies {
         exclude("io.projectreactor", "reactor-core")
     }
 
-    spotbugs("com.github.spotbugs:spotbugs:4.8.6")
+    spotbugs("com.github.spotbugs:spotbugs:4.9.0")
     spotbugsPlugins("com.h3xstream.findsecbugs:findsecbugs-plugin:1.13.0")
 }