Add support for sanitizing kibana and logstash bundles

Right now, the sanitization script / readme [states](https://github.com/elastic/support-diagnostics?tab=readme-ov-file#overview---how-sanitization-works):

> Kibana and Logstash diagnostics are not supported at this time, although you may process those using the single file by file functionality for each entry.

Is there any chance that adding support for sanitization of Kibana and Logstash might get implemented? Would love to see that for when working with Elastic Support.