Bump picocli from 3.8.0 to 4.4.0

Bumps [picocli](https://github.com/remkop/picocli) from 3.8.0 to 4.4.0.
- [Release notes](https://github.com/remkop/picocli/releases)
- [Changelog](https://github.com/remkop/picocli/blob/master/RELEASE-NOTES.md)
- [Commits](remkop/picocli@v3.8.0...v4.4.0)

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

Author: dependabot-preview[bot]

build.gradle

@@ -124,7 +124,7 @@ subprojects {
         if (isStandardGroovyMavenProject) {
             documentation "org.fusesource.jansi:jansi:1.18"
             documentation "org.codehaus.groovy:groovy-dateutil:$groovyVersion"
-            documentation 'info.picocli:picocli:3.8.0'
+            documentation 'info.picocli:picocli:4.4.0'
             compile group: 'org.codehaus.groovy', name: 'groovy', version: groovyVersion
 
             testCompile group: 'org.codehaus.groovy', name: 'groovy-test', version: groovyVersion