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-preview[bot] <support@dependabot.com>

pom.xml

@@ -95,7 +95,7 @@
       <exec.plugin.version>3.0.0</exec.plugin.version>
       <findbugs.plugin.version>3.0.5</findbugs.plugin.version>
       <gmavenplus.plugin.version>1.12.1</gmavenplus.plugin.version>
-      <gpg.plugin.version>1.6</gpg.plugin.version>
+      <gpg.plugin.version>3.0.1</gpg.plugin.version>
       <install.plugin.version>2.5.2</install.plugin.version>
       <jar.plugin.version>3.2.0</jar.plugin.version>
       <javadoc.plugin.version>3.2.0</javadoc.plugin.version>