transformers

1be63d94 - 43054: Add Siglip2Tokenizer to enforce training-time text preprocessing defaults (#43101)

43054: Add Siglip2Tokenizer to enforce training-time text preprocessing defaults (#43101) * Add Siglip2Tokenizer with lowercase normalizer and tests * updated correct gemmatokenizer reference * Updated lowercase logic to keep it simple * added inegration test and removed _unk_id from tokenization * ruff fixes * updated the doc * Updated doc and conversion script * fix modular to skip type hinting when inheriting * style --------- Co-authored-by: ArthurZucker <arthur.zucker@gmail.com>