Bump com.github.spotbugs.snom:spotbugs-gradle-plugin from 5.1.3 to 6.0.4

Bumps [com.github.spotbugs.snom:spotbugs-gradle-plugin](https://github.com/spotbugs/spotbugs-gradle-plugin) from 5.1.3 to 6.0.4.
- [Release notes](https://github.com/spotbugs/spotbugs-gradle-plugin/releases)
- [Commits](spotbugs/spotbugs-gradle-plugin@5.1.3...6.0.4)

---
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] <[email protected]>

buildSrc/build.gradle.kts

@@ -26,7 +26,7 @@ tasks.withType<org.jetbrains.kotlin.gradle.tasks.KotlinCompile>().configureEach
 }
 
 dependencies {
-    implementation("com.github.spotbugs.snom:spotbugs-gradle-plugin:5.1.3")                // https://plugins.gradle.org/plugin/com.github.spotbugs
+    implementation("com.github.spotbugs.snom:spotbugs-gradle-plugin:6.0.4")                // https://plugins.gradle.org/plugin/com.github.spotbugs
     implementation("com.diffplug.spotless:spotless-plugin-gradle:6.23.3")                   // https://plugins.gradle.org/plugin/com.diffplug.spotless
     implementation("gradle.plugin.org.kt3k.gradle.plugin:coveralls-gradle-plugin:2.12.2")   // https://plugins.gradle.org/plugin/com.github.kt3k.coveralls
     implementation("org.javamodularity:moduleplugin:1.8.12")                                // https://plugins.gradle.org/plugin/org.javamodularity.moduleplugin