v1.17.0: Transformers v4.49

Transformers v4.49

This release has been tested and validated for Transformers v4.49 and SynapseAI v1.20.

• Upgrade to Transformers v4.49 #1698 @regisss

Model optimizations

• Use token_idx_cpu int instead of token_idx tensor in slicing #1848 @jaygala223
• Keep logits in bf16 #1835 @jaygala223
• Optimize SD3 Pipeline : Padding prompt Embeddings for softmax_hf8 compatibility and Efficient Utilization #1816 @deepak-gowda-narayana
• Add G3 perf WA for Qwen2VL #1884 @nngokhale
• Fix MPT regression #1857 @atakaha

Tests and CI

• Slow test updates #1804 @ugolowic
• Fix race condition when downloading nltk tokenizer #1802 @ugolowic
• fea(): Skipped the torch_fx tests #1797 @imangohari1
• Upstream tests #1834 @IlyasMoutawwakil
• test_examples: add missing clip-roberta baseline #1852 @uartie
• Separate slow tests by required number of cards #1803 @ugolowic
• Update PR doc build workflow #1904 @regisss

Other

• Disable HPU migration (future add-on to HF diffusers) for OH diffusers #1866 @dsocek
• Allow explicit control over flash_attention_fast_softmax setting #1851 @astachowiczhabana