feat!: Add get_parquet_schema API to ParquetHandler#1498

DrakeLin wants to merge 9 commits intodelta-io:maindelta-io/delta-kernel-rs:mainfrom

DrakeLin:drake-lin_data/parquet_schema_apiDrakeLin/delta-kernel-rs:drake-lin_data/parquet_schema_apiCopy head branch name to clipboard