Bump org.apache.maven.plugins:maven-gpg-plugin from 3.2.7 to 3.2.8

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](apache/maven-gpg-plugin@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
...

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

Author: dependabot[bot]

pom.xml

@@ -57,7 +57,7 @@
         <version.enforcer.plugin>3.5.0</version.enforcer.plugin>
         <version.failsafe.plugin>3.5.3</version.failsafe.plugin>
         <version.fmt-maven-plugin>2.27</version.fmt-maven-plugin>
-        <version.gpg.plugin>3.2.7</version.gpg.plugin>
+        <version.gpg.plugin>3.2.8</version.gpg.plugin>
         <version.jar.plugin>3.4.2</version.jar.plugin>
         <version.jdk>${java.version}</version.jdk>
         <version.jsonschema2pojo-maven-plugin>1.2.2</version.jsonschema2pojo-maven-plugin>