Fix bootstrap script to use internal gitlab instead of github.
Fix bootstrap script to use internal gitlab instead of github.

opennode/waldur-mastermind,opennode/waldur-mastermind,opennode/nodeconductor-assembly-waldur,opennode/nodeconductor-assembly-waldur,opennode/nodeconductor-assembly-waldur,opennode/waldur-mastermind,opennode/waldur-mastermind