Fix slice bug (#5117)

* align squeeze module to torch

* add squeeze for slice

* refine as comments

* refine as comments

* refine

* refine

* redfine

* refine test case

* refine

* refine conv

* fix conv slice

* refine

Co-authored-by: Xiaoyu Zhang <35585791+BBuf@users.noreply.github.com>
Co-authored-by: oneflow-ci-bot <69100618+oneflow-ci-bot@users.noreply.github.com>