Remove local keyword from build script (#1642)
Summary:
The bash keyword `local` only works within a function.
Install other Conda packages to work with torchrec_dlrm and torchaudio.
Test workflow:
https://github.com/pytorch/benchmark/actions/runs/4963384277
Pull Request resolved: https://github.com/pytorch/benchmark/pull/1642
Reviewed By: janeyx99
Differential Revision: D45833104
Pulled By: xuzhao9
fbshipit-source-id: edf685078e71f69dde459362318decc0cb793ab0
