Bump org.apache.maven.plugins:maven-gpg-plugin from 3.2.0 to 3.2.1

Bumps [org.apache.maven.plugins:maven-gpg-plugin](https://github.com/apache/maven-gpg-plugin) from 3.2.0 to 3.2.1.
- [Release notes](https://github.com/apache/maven-gpg-plugin/releases)
- [Commits](apache/maven-gpg-plugin@maven-gpg-plugin-3.2.0...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-patch
...

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

pom.xml

@@ -30,7 +30,7 @@
         <maven-release-plugin.version>3.0.1</maven-release-plugin.version>
         <maven-surefire-plugin.version>3.2.5</maven-surefire-plugin.version>
         <jacoco-maven-plugin.version>0.8.11</jacoco-maven-plugin.version>
-        <maven-gpg-plugin.version>3.2.0</maven-gpg-plugin.version>
+        <maven-gpg-plugin.version>3.2.1</maven-gpg-plugin.version>
         <exec-maven-plugin.version>3.2.0</exec-maven-plugin.version>
         <maven-jar-plugin.version>3.3.0</maven-jar-plugin.version>
         <maven-asciidoctor-plugin.version>3.0.0</maven-asciidoctor-plugin.version>