Allow env deploy to have a "Always" pull policy

[SaMnCo]

Currently the default pull policy of the environments are "IfNotPresent" and it is not possible to change it without manually updating the deployments.

It would be nice to be able to update the env with a --force which would trigger a forced update even if running on "latest"

This is not a big deal, especially with packaging coming up, just a nice to have.