build(deps): bump com.google.guava:guava from 33.4.7-jre to 33.4.8-jre

Bumps [com.google.guava:guava](https://github.com/google/guava) from 33.4.7-jre to 33.4.8-jre.
- [Release notes](https://github.com/google/guava/releases)
- [Commits](https://github.com/google/guava/commits)

---
updated-dependencies:
- dependency-name: com.google.guava:guava
  dependency-version: 33.4.8-jre
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

build.gradle

@@ -57,7 +57,7 @@ dependencies {
     implementation("edu.kit.datamanager:service-base:1.3.3")
     implementation("edu.kit.datamanager:repo-core:1.2.5")
     // com.google.common, LoadingCache
-    implementation("com.google.guava:guava:33.4.7-jre")
+    implementation("com.google.guava:guava:33.4.8-jre")
 
     // spring core, e.g. @EnableJpaRepositories
     implementation "org.springframework:spring-core"