[1237][cygnus][Dockerfile] Set correct branch and repo values
[1237][cygnus][Dockerfile] Set correct branch and repo values

Fiware/data.Cygnus,telefonicaid/fiware-cygnus,Fiware/data.Cygnus,Fiware/context.Cygnus,telefonicaid/fiware-cygnus,Fiware/data.Cygnus,telefonicaid/fiware-cygnus,Fiware/context.Cygnus,telefonicaid/fiware-cygnus,Fiware/context.Cygnus,Fiware/context.Cygnus