added source variable in snapcraft.yaml
added source variable in snapcraft.yaml


Former-commit-id: 72c1d1746c2157c5ee315f677aad8f252a6906f5
Sargul/dbeaver,dbeaver/dbeaver,dbeaver/dbeaver,dbeaver/dbeaver,serge-rider/dbeaver,dbeaver/dbeaver,Sargul/dbeaver,serge-rider/dbeaver,Sargul/dbeaver,Sargul/dbeaver,serge-rider/dbeaver,serge-rider/dbeaver,Sargul/dbeaver