Bump maven-shade-plugin from 3.3.0 to 3.4.0 in /java/jmx (#2464)

Bumps [maven-shade-plugin](https://github.com/apache/maven-shade-plugin) from 3.3.0 to 3.4.0.
- [Release notes](https://github.com/apache/maven-shade-plugin/releases)
- [Commits](apache/maven-shade-plugin@maven-shade-plugin-3.3.0...maven-shade-plugin-3.4.0)

---
updated-dependencies:
- dependency-name: org.apache.maven.plugins:maven-shade-plugin
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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java/jmx/pom.xml

@@ -74,7 +74,7 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-shade-plugin</artifactId>
-                <version>3.3.0</version>
+                <version>3.4.0</version>
                 <configuration>
                 </configuration>
                 <executions>