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

@@ -711,7 +711,7 @@
     <checkstyle-version>10.26.1</checkstyle-version>
     <directory-maven-version>1.0</directory-maven-version>
     <maven-jxr-plugin-version>3.6.0</maven-jxr-plugin-version>
-    <maven-gpg-plugin-version>3.2.7</maven-gpg-plugin-version>
+    <maven-gpg-plugin-version>3.2.8</maven-gpg-plugin-version>
     <hamcrest-junit-version>2.0.0.0</hamcrest-junit-version>
     <simplestub-version>1.3.3</simplestub-version>
     <jakarta-json-version>2.0.1</jakarta-json-version>