Handle AuthorizationFailed in manage-azure-deployment.sh

[netr0m]

Expected Behaviour

Receiving an AuthorizationFailed error should cause the script to abort.

Actual Behaviour

Creating Resource Group 'MultiJuicerTest' in 'norwayeast'
ERROR: (AuthorizationFailed) The client '<REDACTED>' with object id '<REDACTED>' does not have authorization to perform action 'Microsoft.Resources/subscriptions/resourcegroups/write' over scope '/subscriptions/<REDACTED>/resourcegroups/MultiJuicerTest' or the scope is invalid. If access was recently granted, please refresh your credentials.
Code: AuthorizationFailed

Creating AKS cluster 'juicy-k8s'
ERROR: (AuthorizationFailed) The client '<REDACTED>' with object id '<REDACTED>' does not have authorization to perform action 'Microsoft.Resources/subscriptions/resourcegroups/read' over scope '/subscriptions/<REDACTED>/resourcegroups/MultiJuicerTest' or the scope is invalid. If access was recently granted, please refresh your credentials.
Code: AuthorizationFailed

[...]

Steps to Reproduce

• Run the script manage-azure-delpoyment.sh as a user without permission to create resources (e.g. as the Service Principal)