Bump maven-shade-plugin from 3.1.0 to 3.2.1

Bumps [maven-shade-plugin](https://github.com/apache/maven-shade-plugin) from 3.1.0 to 3.2.1.
- [Release notes](https://github.com/apache/maven-shade-plugin/releases)
- [Commits](apache/maven-shade-plugin@maven-shade-plugin-3.1.0...maven-shade-plugin-3.2.1)

pom.xml

@@ -111,7 +111,7 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-shade-plugin</artifactId>
-                <version>3.1.0</version>
+                <version>3.2.1</version>
             </plugin>
 
             <plugin>