Upgrade commons-lang3 from 3.14.0 to 3.15.0. New features and bug fixes.

Tag: https://github.com/apache/commons-lang/releases/tag/rel%2Fcommons-lang-3.15.0
Diff: https://github.com/apache/commons-lang/compare/rel/commons-lang-3.14.0...rel/commons-lang-3.15.0

Note: WildFly Core drives the commons-lang3 version used in WildFly Full.

Release notes: https://commons.apache.org/proper/commons-lang/changes-report.html#a3.15.0