Bump org.apache.maven.plugins:maven-gpg-plugin from 3.2.5 to 3.2.6

Bumps [org.apache.maven.plugins:maven-gpg-plugin](https://github.com/apache/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
...

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

pom.xml

@@ -77,7 +77,7 @@ We use these goals frequently to keep the dependencies and plugins up-to-date:
         <maven.install.version>3.1.3</maven.install.version>
         <maven.compiler.version>3.13.0</maven.compiler.version>
         <maven.deploy.version>3.0.0-M1</maven.deploy.version>
-        <maven.gpg.version>3.2.5</maven.gpg.version>
+        <maven.gpg.version>3.2.6</maven.gpg.version>
         <maven.jacoco.version>0.8.12</maven.jacoco.version>
         <maven.jar.version>3.4.2</maven.jar.version>
         <maven.javadoc.version>3.0.1</maven.javadoc.version>