Bump commons-net from 3.6 to 3.9.0

Bumps commons-net from 3.6 to 3.9.0.

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

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

pom.xml

@@ -26,7 +26,7 @@
         <spotbugs.excludes.file>${project.basedir}/src/main/spotbugs/excludes.xml</spotbugs.excludes.file>
         <version.common-utils>1.1</version.common-utils>
         <version.commons-lang3>3.9</version.commons-lang3>
-        <version.commons-net>3.6</version.commons-net>
+        <version.commons-net>3.9.0</version.commons-net>
         <version.geowave>1.1.0</version.geowave>
         <version.hadoop>2.6.0-cdh5.9.1</version.hadoop>
         <version.jts>1.19.0</version.jts>