Bump org.controlsfx:controlsfx from 11.1.2 to 11.2.1

Bumps [org.controlsfx:controlsfx](https://github.com/controlsfx/controlsfx) from 11.1.2 to 11.2.1.
- [Release notes](https://github.com/controlsfx/controlsfx/releases)
- [Commits](controlsfx/controlsfx@11.1.2...11.2.1)

---
updated-dependencies:
- dependency-name: org.controlsfx:controlsfx
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

build.gradle

@@ -247,7 +247,7 @@ dependencies {
     }
     implementation group: 'net.sourceforge.argparse4j', name: 'argparse4j', version: '0.9.0'
     implementation group: 'org.xmlunit', name: 'xmlunit-core', version:'2.9.1'
-    implementation group: 'org.controlsfx', name: 'controlsfx', version:'11.1.2'
+    implementation group: 'org.controlsfx', name: 'controlsfx', version:'11.2.1'
 
     implementation group: 'net.sourceforge.pcgen', name: 'PCGen-base', version:'1.0.170'
     // The latest Base, but pcgen core would need refactoring to support it.