ClearMLCallback enhancements: support multiple runs and handle logging better (#28559)
* add clearml tracker
* support multiple train runs
* remove bad code
* add UI entries for config/hparams overrides
* handle models in different tasks
* run ruff format
* tidy code based on code review
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Co-authored-by: Eugen Ajechiloae <eugenajechiloae@gmail.com>