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3e99b567 - Extend Support for callback_on_step_end for AuraFlow and LuminaText2Img Pipelines (#10746)

Extend Support for callback_on_step_end for AuraFlow and LuminaText2Img Pipelines (#10746) * Add support for callback_on_step_end for AuraFlowPipeline and LuminaText2ImgPipeline. * Apply the suggestions from code review for lumina and auraflow Co-authored-by: hlky <hlky@hlky.ac> * Update missing inputs and imports. * Add input field. * Apply suggestions from code review-2 Co-authored-by: hlky <hlky@hlky.ac> * Apply the suggestions from review for unused imports. Co-authored-by: hlky <hlky@hlky.ac> * make style. * Update pipeline_aura_flow.py * Update pipeline_lumina.py * Update pipeline_lumina.py * Update pipeline_aura_flow.py * Update pipeline_lumina.py --------- Co-authored-by: hlky <hlky@hlky.ac>