Fixed wrong padding value in OWLv2 (#41938)
* Update image_processing_owlv2_fast.py
fixed padding value
* fixed padding value
* Change padding constant value from 0.5 to 0.0
* Fixed missed padding value in modular_owlv2.py
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Co-authored-by: Yoni Gozlan <74535834+yonigozlan@users.noreply.github.com>