build(deps): bump org.apache.maven.plugins:maven-gpg-plugin

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] <support@github.com>

Author: dependabot[bot]

pom.xml

@@ -59,7 +59,7 @@
     <version.maven-plugin-annotations>3.10.1</version.maven-plugin-annotations>
     <version.maven-plugin-plugin>3.9.0</version.maven-plugin-plugin>
     <version.maven-enforcer-plugin>3.6.1</version.maven-enforcer-plugin>
-    <version.maven-gpg>3.2.7</version.maven-gpg>
+    <version.maven-gpg>3.2.8</version.maven-gpg>
     <version.maven-invoker-plugin>3.6.0</version.maven-invoker-plugin>
     <version.maven-javadoc-plugin>3.12.0</version.maven-javadoc-plugin>
     <version.maven-release-plugin>3.1.1</version.maven-release-plugin>