chore(deps): update dependency org.apache.maven.plugins:maven-gpg-plugin to v3.2.8

Author: renovate[bot]

pom.xml

@@ -476,7 +476,7 @@ SOFTWARE.
           <plugin>
             <groupId>org.apache.maven.plugins</groupId>
             <artifactId>maven-gpg-plugin</artifactId>
-            <version>3.2.4</version>
+            <version>3.2.8</version>
             <configuration>
               <gpgArguments>
                 <arg>--pinentry-mode</arg>