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dd4459ad - [Refactor] spliting`ResnetBlock2D` into multiple blocks (#6166)

[Refactor] spliting`ResnetBlock2D` into multiple blocks (#6166) --------- Co-authored-by: yiyixuxu <yixu310@gmail,com> Co-authored-by: Patrick von Platen <patrick.v.platen@gmail.com> Co-authored-by: Sayak Paul <spsayakpaul@gmail.com>