Patch release v4.50.2

I completely forgot to put these in the previous patch sorry!
Should put the transformers backend in a good spot!

• [Utils] torch version checks optionally accept dev versions (#36847) by @gante

• Fix processor kwargs qwen2 vl (#36890) by @yonigozlan

• Fix Pan and Scan on batched images Gemma3 (#36864) by @yonigozlan