[Contribution welcome] adding a fast test for Qwen-Image Controlnet Pipeline

[yiyixuxu]

We are looking for help from community to add a fast time for this PR
#12215

You can add a file under this folder:
https://github.com/huggingface/diffusers/tree/main/tests/pipelines/qwenimage

You can reference other tests we added for qwee pipelines example, as well as controlnet fasts tests example

[SahilCarterr]

InstantX Qwen-Image-ControlNet-Union no longer exists.

[haofanwang]

Will be released soon.

[yiyixuxu]

@bhumijain19 yes please!

[akiseakusa]

Hi, I’ve added a fast test for the Qwen-Image ControlNet pipeline as discussed in #12222
Since this was marked as a community contribution, I thought it would be helpful to draft this PR.

@yiyixuxu would love your feedback on this whenever you have a moment

[yiyixuxu]

completed by @akiseakusa
thanks!