Bump commons-net from 3.3 to 3.9.0 in /samples/java

Bumps commons-net from 3.3 to 3.9.0.

---
updated-dependencies:
- dependency-name: commons-net:commons-net
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

samples/java/pom.xml

@@ -57,7 +57,7 @@
     <dependency>
       <groupId>commons-net</groupId>
       <artifactId>commons-net</artifactId>
-      <version>3.3</version>
+      <version>3.9.0</version>
     </dependency>
   </dependencies>
 </project>