Reorder and group imports in jina template unit tests
Reorder and group imports in jina template unit tests

The imports were scattered around quite a bit, which made it hard
to see where multiple uses of salt/utils/* imports were being pulled
in.

This PR just adjusts the ordering so it's easier to see what is included
already for the future. (This is particularly useful for catching misuses
of salt.utils.__init__.py functions.)

saltstack/salt,saltstack/salt,saltstack/salt,saltstack/salt,saltstack/salt