Converted Numeric Ruby setting class to Java

[andsel]

TODO

• change the base of the PR to elastic/logstash on main branch
• proceed after Backport PR #16675 to 8.x: Updates release notes for 8.14.x to call for an update. elastic/logstash#16676 has been merged

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• My code follows the style guidelines of this project
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• I have made corresponding change to the default configuration files (and/or docker env variables)
• I have added tests that prove my fix is effective or that my feature works

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