core: pin spotbug version to 6.0.9

core/gradle/libs.versions.toml

@@ -72,7 +72,7 @@ ksp = { id = 'com.google.devtools.ksp', version.ref = 'ksp' }
 kotlin-jvm = { id = 'org.jetbrains.kotlin.jvm', version.ref = 'kotlin' }
 
 # java
-spotbugs = { id = 'com.github.spotbugs', version = '6.0.+' }
+spotbugs = { id = 'com.github.spotbugs', version = '6.0.9' }
 spotless = { id = 'com.diffplug.spotless', version = '6.25.0' }
 shadow = { id = 'com.github.johnrengelman.shadow', version = '8.1.1' }
 versions = { id = 'com.github.ben-manes.versions', version = '0.51.0' }