Bump maven-gpg-plugin from 1.5 to 3.2.5

Bumps [maven-gpg-plugin](https://github.com/apache/maven-gpg-plugin) from 1.5 to 3.2.5.
- [Release notes](https://github.com/apache/maven-gpg-plugin/releases)
- [Commits](apache/maven-gpg-plugin@maven-gpg-plugin-1.5...maven-gpg-plugin-3.2.5)

Author: dependabot-preview[bot]

pom.xml

@@ -119,7 +119,7 @@
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-gpg-plugin</artifactId>
-        <version>1.5</version>
+        <version>3.2.5</version>
         <executions>
           <execution>
             <id>sign-artifacts</id>