AzureProvisioner output saves connection strings to user secrets even if it did nothing

This is what happens when you use an azure resource and do nothing else:

```
Building...
info: Aspire.Hosting.Azure.AzureProvisioner[0]
Using DefaultAzureCredential for provisioning. This may not work in all environments. See https://aka.ms/azsdk/net/identity/default-azure-credential for more information.
info: Aspire.Hosting.Azure.AzureProvisioner[0]
Azure resource connection strings saved to user secrets.
```

The first log should only show up if we are going to provision.
The second log should only show up if we have indeed saved connection string to user secrets.