Bump protobuf version in CircleCI docker images (#62441)
Summary:
Needed to update ONNX to 1.10 (https://github.com/pytorch/pytorch/issues/62039) because that introduces uses
of the "reserved" protobuf feature.
Also:
* Remove protobuf install code from scripts where it was unused.
* Add `-j` flag to make commands to speed things up.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/62441
Reviewed By: soulitzer
Differential Revision: D30072381
Pulled By: malfet
fbshipit-source-id: f55a4597baf95e3ed8ed987d6874388cab3426b0
