[docker] Create the admin user in the inbox-base image.
[docker] Create the admin user in the inbox-base image.

wakermahmud/sync-engine,EthanBlackburn/sync-engine,ErinCall/sync-engine,jobscore/sync-engine,PriviPK/privipk-sync-engine,PriviPK/privipk-sync-engine,Eagles2F/sync-engine,wakermahmud/sync-engine,nylas/sync-engine,PriviPK/privipk-sync-engine,closeio/nylas,EthanBlackburn/sync-engine,PriviPK/privipk-sync-engine,EthanBlackburn/sync-engine,ErinCall/sync-engine,Eagles2F/sync-engine,EthanBlackburn/sync-engine,closeio/nylas,closeio/nylas,nylas/sync-engine,nylas/sync-engine,wakermahmud/sync-engine,nylas/sync-engine,wakermahmud/sync-engine,PriviPK/privipk-sync-engine,jobscore/sync-engine,closeio/nylas,ErinCall/sync-engine,gale320/sync-engine,wakermahmud/sync-engine,jobscore/sync-engine,ErinCall/sync-engine,gale320/sync-engine,gale320/sync-engine,Eagles2F/sync-engine,Eagles2F/sync-engine,jobscore/sync-engine,Eagles2F/sync-engine,EthanBlackburn/sync-engine,gale320/sync-engine,gale320/sync-engine,ErinCall/sync-engine