Fixes for Flux Single File loading, LoRA loading for 4bit BnB Flux, Hunyuan Video

This patch release

• Fixes a regression in loading Comfy UI format single file checkpoints for Flux
• Fixes a regression in loading LoRAs with bitsandbytes 4bit quantized Flux models
• Adds unload_lora_weights for Flux Control
• Fixes a bug that prevents Hunyuan Video from running with batch size > 1
• Allow Hunyuan Video to load LoRAs created from the original repository code

All commits

• [Single File] Fix loading Flux Dev finetunes with Comfy Prefix by @DN6 in #10545
• [CI] Update HF Token on Fast GPU Model Tests by @DN6 #10570
• [CI] Update HF Token in Fast GPU Tests by @DN6 #10568
• Fix batch > 1 in HunyuanVideo by @hlky in #10548
• Fix HunyuanVideo produces NaN on PyTorch<2.5 by @hlky in #10482
• Fix hunyuan video attention mask dim by @a-r-r-o-w in #10454
• [LoRA] Support original format loras for HunyuanVideo by @a-r-r-o-w in #10376
• [LoRA] feat: support loading loras into 4bit quantized Flux models. by @sayakpaul in #10578
• [LoRA] clean up load_lora_into_text_encoder() and fuse_lora() copied from by @sayakpaul in #10495
• [LoRA] feat: support unload_lora_weights() for Flux Control. by @sayakpaul in #10206
• Fix Flux multiple Lora loading bug by @maxs-kan in #10388
• [LoRA] fix: lora unloading when using expanded Flux LoRAs. by @sayakpaul in #10397