Key Vault clients use hardcoded public cloud scope

[HectorMorenoTR]

Bug Title

No response

Crate Name

azure_security_keyvault_secrets

Crate Version

0.9.0

Description

Current secret client has a fixed auth policy restricting the access to Azure Government

1. create secret on keyvault for Azure Gov
2. Instantiate a client for Azure Goverment cloud
3. Try to get the secret using get_secret method
4. it fails with the following message: The requested identity hasn’t been assigned to this resource.

The code responsible for the error:

azure-sdk-for-rust/sdk/keyvault/azure_security_keyvault_secrets/src/generated/clients/secret_client.rs

Lines 71 to 74 in 7583705

	let auth_policy: Arc<dyn Policy> = Arc::new(BearerTokenAuthorizationPolicy::new(
	credential,
	vec!["https://vault.azure.net/.default"],
	));

Steps to Reproduce

1. create secret on keyvault for Azure Gov
2. Instantiate a client for Azure Goverment cloud
3. Try to get the secret using get_secret method
4. it fails with the following message: The requested identity hasn’t been assigned to this resource.

Checklist

• Follow our Code of Conduct
• Check that there isn't already an issue that request the same bug to avoid creating a duplicate.
• The provided reproduction is a minimal reproducible example of the bug.