Bug Fix: Sliding Window Attention (#3112)

* (fix) sliding window attention

* (fix) flashinfer

* (typo) collection link

* Add window_size_left param ipex rocm

* Update window size rocm flash decoding

* fix: bump snapshots and improve exceed window test case

* feat: add tests for image types and remove alpha from png

* Upgrading `from_env` to get token from file when necessary + fix
pali_gemma.

* fix: add pillow dependency and bump lock+requirements

* fix: bump org name in gemma3 test

* Fix qwen2.

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Co-authored-by: drbh <david.richard.holtz@gmail.com>
Co-authored-by: Nicolas Patry <patry.nicolas@protonmail.com>