Build(deps): Bump com.github.spotbugs:spotbugs in /libcobj

Bumps [com.github.spotbugs:spotbugs](https://github.com/spotbugs/spotbugs) from 4.8.6 to 4.9.8.
- [Release notes](https://github.com/spotbugs/spotbugs/releases)
- [Changelog](https://github.com/spotbugs/spotbugs/blob/master/CHANGELOG.md)
- [Commits](spotbugs/spotbugs@4.8.6...4.9.8)

---
updated-dependencies:
- dependency-name: com.github.spotbugs:spotbugs
  dependency-version: 4.9.8
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

libcobj/app/build.gradle.kts

@@ -37,7 +37,7 @@ dependencies {
     testImplementation("org.junit.jupiter:junit-jupiter:5.13.4")
     testRuntimeOnly("org.junit.platform:junit-platform-launcher")
     implementation("org.json:json:20250517")
-    spotbugs("com.github.spotbugs:spotbugs:4.8.6")
+    spotbugs("com.github.spotbugs:spotbugs:4.9.8")
 
     implementation("org.slf4j:slf4j-api:2.0.17")
     implementation("org.slf4j:slf4j-simple:2.0.17")