Bump maven-gpg-plugin from 1.6 to 3.0.1

Bumps [maven-gpg-plugin](https://github.com/apache/maven-gpg-plugin) from 1.6 to 3.0.1.
- [Release notes](https://github.com/apache/maven-gpg-plugin/releases)
- [Commits](apache/maven-gpg-plugin@maven-gpg-plugin-1.6...maven-gpg-plugin-3.0.1)

Signed-off-by: dependabot[bot] <support@github.com>

pom.xml

@@ -60,7 +60,7 @@
         <maven-jar-plugin.version>3.2.0</maven-jar-plugin.version>
         <maven-release-plugin.version>2.5.3</maven-release-plugin.version>
         <build-helper-maven-plugin.version>3.2.0</build-helper-maven-plugin.version>
-        <maven-gpg-plugin.version>1.6</maven-gpg-plugin.version>
+        <maven-gpg-plugin.version>3.0.1</maven-gpg-plugin.version>
     </properties>
     <dependencies>
         <dependency>