Bump org.apache.maven.plugins:maven-gpg-plugin from 3.2.7 to 3.2.8 (#2528)

Bumps [org.apache.maven.plugins:maven-gpg-plugin](https://github.com/apache/maven-gpg-plugin) from 3.2.7 to 3.2.8.
- [Release notes](https://github.com/apache/maven-gpg-plugin/releases)
- [Commits](https://github.com/apache/maven-gpg-plugin/compare/maven-gpg-plugin-3.2.7...maven-gpg-plugin-3.2.8)

---
updated-dependencies:
- dependency-name: org.apache.maven.plugins:maven-gpg-plugin
  dependency-version: 3.2.8
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

pom.xml

@@ -90,7 +90,7 @@
         <license.tool.plugin.version>1.1.0</license.tool.plugin.version>
         <license.maven.plugin.version>5.0.0</license.maven.plugin.version>
         <central.publishing.maven.plugin.version>0.8.0</central.publishing.maven.plugin.version>
-        <maven.gpg.plugin.version>3.2.7</maven.gpg.plugin.version>
+        <maven.gpg.plugin.version>3.2.8</maven.gpg.plugin.version>
         <!-- Maven Plugin versions - END -->
 
         <!-- Test - START -->