Xgboost bug fix

[cying111]

This PR is created to resolve the issues related to xgboost updates, specifically:

• update all label features to be type logical in both testSpliceSite and getTranscriptScores function
• update pre-saved models for both splicing junction prediction and defaultModels for read class scoring
• update test code for xgboost as well as saved outputs relevant to xgboost testing

[SuiYue-2308]

Hi, I’ve reviewed the code changes and everything looks good. I also tested it on a real dataset (dRNA), and it ran smoothly.