dependency: bump com.google.guava:guava in /releasenotes-builder

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] <[email protected]>

Author: dependabot[bot]

releasenotes-builder/pom.xml

@@ -10,7 +10,7 @@
 
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-        <maven.plugin.guava.version>33.4.7-jre</maven.plugin.guava.version>
+        <maven.plugin.guava.version>33.4.8-jre</maven.plugin.guava.version>
         <maven.plugin.antrun.version>3.1.0</maven.plugin.antrun.version>
         <maven.plugin.github-api.version>1.327</maven.plugin.github-api.version>
         <maven.plugin.jgit.version>6.10.0.202406032230-r</maven.plugin.jgit.version>