.github: Use 4xlarge instances for linux gpu (#67264)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/67264
Downgrades linux gpu instances from 4xlarge -> 8xlarge
We were seeing capacity issues in terms of scaling 8xlarge instances,
downgrading this to 4xlarge (which only have a single gpu) to see if
that helps resolve some of the capacity issues we were seeing
Signed-off-by: Eli Uriegas <eliuriegas@fb.com>
Test Plan: Imported from OSS
Reviewed By: janeyx99
Differential Revision: D31933488
Pulled By: seemethere
fbshipit-source-id: b41922ebb675e663cb035cd3795bc9bae94dcac7
