.circleci: Add git to the ecr gc docker images (#40262)
Summary:
Fixes GC jobs failing
Signed-off-by: Eli Uriegas <eliuriegas@fb.com>
Pull Request resolved: https://github.com/pytorch/pytorch/pull/40262
Differential Revision: D22131192
Pulled By: seemethere
fbshipit-source-id: 182eb5f2f49889e6ef19817130e155c52bec2060
