Bump org.apache.maven.plugins:maven-gpg-plugin from 3.1.0 to 3.2.1

Bumps [org.apache.maven.plugins:maven-gpg-plugin](https://github.com/apache/maven-gpg-plugin) from 3.1.0 to 3.2.1.
- [Release notes](https://github.com/apache/maven-gpg-plugin/releases)
- [Commits](apache/maven-gpg-plugin@maven-gpg-plugin-3.1.0...maven-gpg-plugin-3.2.1)

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

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

pom.xml

@@ -59,7 +59,7 @@
         <maven.plugin.plugin.version>3.10.2</maven.plugin.plugin.version>
         <maven.plugin.project.version>2.2.1</maven.plugin.project.version>
         <lombok.version>1.18.30</lombok.version>
-        <maven.gpg.plugin.version>3.1.0</maven.gpg.plugin.version>
+        <maven.gpg.plugin.version>3.2.1</maven.gpg.plugin.version>
         <maven.source.plugin.version>3.3.0</maven.source.plugin.version>
         <maven.javadoc.plugin.version>3.6.2</maven.javadoc.plugin.version>
         <nexus.staging.maven.plugin.version>1.6.13</nexus.staging.maven.plugin.version>