RD-3757 Refresh the deployment before starting an execution (#3393)
RD-3757 Refresh the deployment before starting an execution (#3393)

In case create-dep-env finished between:
  - the time we checked for if we need to queue (and decided that we
    don't, because create-dep-env finished)
  - and the time we fetched the deployment (where it didn't have
    workflows populated yet, because create-dep-env didnt finish yet)
then the execution would attempt to run, but won't be able to, because
we have an old version of the deployment fetched in memory.
Refresh it to get the workflows.
cloudify-cosmo/cloudify-manager,cloudify-cosmo/cloudify-manager,cloudify-cosmo/cloudify-manager