When submitting a Cloud Build job from the command line, we do not want to include files under repos/, which can amount to almost a Gig.
-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=244906528
Also moved pushing tags to the private repo to the last step as we do not want
to tag the configs unless the build is successful.
-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=223982622
Forgot to do this when I exported... Will have to do another export after this CL is added.
-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=222296851