add type annotations to conv_fused/blas_compare/blas_compare_setup (#51235)
Summary:
Fixes https://github.com/pytorch/pytorch/issues/51234
Pull Request resolved: https://github.com/pytorch/pytorch/pull/51235
Reviewed By: malfet
Differential Revision: D26147184
Pulled By: walterddr
fbshipit-source-id: 1ca1a1260785c8b7f4c3c24d7763ccbdaa0bfefb
