Error 'list index out of range' occur when collecting StorageAccounts

[ImMin5]

When collecting sotrageaccounts, the following errors occur and collection fails.

2023-02-23T16:50:13.600Z [ERROR] tnx-760b1238b439  (instance_manager.py:102) [list_instances] /subscriptions/aaaaaaaaaa/resourceGroups/bbbbbbb/providers/Microsoft.Storage/storageAccounts/cccccccccc list index out of range 
...

[ImMin5]

This kind of error occur when collecting right after creating Storage Account.

So If you want to get data you need to wait enough time to Azure collect metric data about this.

To resolve this error I added code.(#46)