Bump org.apache.maven.plugins:maven-gpg-plugin from 3.2.3 to 3.2.4

Bumps [org.apache.maven.plugins:maven-gpg-plugin](https://github.com/apache/maven-gpg-plugin) from 3.2.3 to 3.2.4.
- [Release notes](https://github.com/apache/maven-gpg-plugin/releases)
- [Commits](apache/maven-gpg-plugin@maven-gpg-plugin-3.2.3...maven-gpg-plugin-3.2.4)

---
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

@@ -100,7 +100,7 @@
     <revapi-java.version>0.28.1</revapi-java.version>
     <revapi-reporter-json-version>0.5.0</revapi-reporter-json-version>
     <nexus-staging-maven-plugin.version>1.6.13</nexus-staging-maven-plugin.version>
-    <maven-gpg-plugin.version>3.2.3</maven-gpg-plugin.version>
+    <maven-gpg-plugin.version>3.2.4</maven-gpg-plugin.version>
     <maven-release-plugin.version>3.0.1</maven-release-plugin.version>
     <assertj-assertions-generator-maven-plugin.version>2.2.0</assertj-assertions-generator-maven-plugin.version>
     <maven-enforcer-plugin.version>3.4.1</maven-enforcer-plugin.version>