The client_approle_authorized was checking for app role authorization
too early before the charm had been authorized by the authorize-charm
action.
Before checking on app role authorization verify the leader setting,
"local-charm-access-id", set by the authorize-charm action.
Closes-Bug: #1889654
Change-Id: I53f2c357c06a5ac9846718654d35c9baa576cafd