Bump org.apache.maven.plugins:maven-gpg-plugin

Bumps the test-dependencies group with 1 update: [org.apache.maven.plugins:maven-gpg-plugin](https://github.com/apache/maven-gpg-plugin).


Updates `org.apache.maven.plugins:maven-gpg-plugin` from 3.2.5 to 3.2.6
- [Release notes](https://github.com/apache/maven-gpg-plugin/releases)
- [Commits](apache/maven-gpg-plugin@maven-gpg-plugin-3.2.5...maven-gpg-plugin-3.2.6)

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

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

pom.xml

@@ -45,7 +45,7 @@
     <checkstyle.version>10.18.1</checkstyle.version>
     <checkstyle-plugin.version>3.5.0</checkstyle-plugin.version>
     <compiler-plugin.version>3.13.0</compiler-plugin.version>
-    <gpg-plugin.version>3.2.5</gpg-plugin.version>
+    <gpg-plugin.version>3.2.6</gpg-plugin.version>
     <jacoco.version>0.8.12</jacoco.version>
     <javadoc-plugin.version>3.10.0</javadoc-plugin.version>
     <nexus-plugin.version>1.7.0</nexus-plugin.version>