Do not fail if `salt.function` has no minions to target
Do not fail if `salt.function` has no minions to target

Currently, `update-etc-hosts` orchestration fails because `update_mine`
`salt.function` cannot target any minions at the beginning, and since
this is a prerequisite for other states, the Reactor orchestration
fails.

Only call to these `salt.function` if there are any minions to target.

kubic-project/salt,ereslibre/salt,ereslibre/salt,ereslibre/salt,kubic-project/salt,kubic-project/salt