Register the required resource providers

[zammitjohn]

Changes

• Added Resource Provider registration. Re-running this command on the same subscription is not destructive, it will simply re-register the Resource Provider. This adds new locations (if any) that have been added since the previous registration.
  From docs: https://learn.microsoft.com/en-us/azure/azure-resource-manager/management/resource-providers-and-types.
• Switched steps to grant admin consent before KV creation. This was necessary because if the Key Vault creation failed (for example, due to a name conflict), the admin consent would not be given automatically and would have to be done manually later.

[mplette]

All good