Uniformize OwlViT and Owlv2 processors
Author: yonigozlan
Pull request: yes
Labels: name: run-slow

# What does this PR do?
Adds uniformized processors following https://github.com/huggingface/transformers/issues/31911 for OwlViT and Owlv2.
Split from this PR #32841 
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Comments:
The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/transformers/pr_35700). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update.

@yonigozlan I found this one is required for my PR for zero-short `pipeline` to work as well 😄 so, it's perfect timing

@ArthurZucker This is ready for your review :)

Also, it should be possible not to run slow tests with "run-slow: owlvit, owlv2" comment if you merge the latest main

It triggers with the GitHub comment "run-slow: owlvit, owlv2"

P.S. job name to check tests running "pytest/custom-tests"

run-slow: owlvit, owlv2

This comment contains run-slow, running the specified jobs: ['models/owlv2', 'models/owlvit'] ...

> It triggers with the GitHub comment "run-slow: owlvit, owlv2"

Oh cool thanks, so run-slow doesn't work anymore with a commit message?

AFAIK not anymore, it was disabled