[pruner] modify base pruner to prune bias by default (#63202)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/63202
By default, the prune will also prune biases, such that the whole output channel is removed. The user can manually set `also_prune_bias` to False when calling `prepare` if they don't want the bias to be pruned.
ghstack-source-id: 136466671
Test Plan:
`buck test mode/dev-nosan //caffe2/test:ao -- TestBasePruner`
https://pxl.cl/1MV32
modify `fusion_tests` according to API change
`buck test mode/opt //scripts/kazhou:fusion_tests`
https://pxl.cl/1NbKz
Reviewed By: z-a-f
Differential Revision: D30294494
fbshipit-source-id: c84655648bee0035559195ca855b98fb7edaa134
