Add refresh token support for Azure AD OAuth provider

[SigveSjovold]

Description

This PR adds support for handling refresh tokens in the Azure AD OAuth provider. This enables applications to maintain long-term access to Azure AD resources without requiring users to re-authenticate.

Changes

• Added refresh token retrieval in get_token method
• Store refresh token in provider instance
• Include refresh token in user metadata
• Added offline_access scope to enable refresh token support

Testing

I have tested these changes by:

• Authenticating with Azure AD
• Verifying refresh token is properly retrieved
• Confirming refresh token is accessible in user metadata

[hayescode]

@SigveSjovold nice PR! Can you add this to the AzureHybrid class as well?

[SigveSjovold]

@hayescode Thanks! Added it now.

[dokterbob]

The code looks good to me, but I am not working with Azure so not really in a position to test it.

It would be amazing to have feedback from someone else before merging.

@hayescode Any chance you could give this one a go?

[hayescode]

The code looks good to me, but I am not working with Azure so not really in a position to test it.

It would be amazing to have feedback from someone else before merging.

@hayescode Any chance you could give this one a go?

@dokterbob works great for me using Azure Hybrid authentication. It adds a new key to user.metadata called 'refresh_token'.

@cl.oauth_callback
def login(
    provider_id: str,
    token: str,
    raw_user_data: Dict[str, str],
    default_user: cl.User,
    id_token: Optional[str],
) -> Optional[cl.PersistedUser]:
    print("Default User Metadata:")
    for key, value in default_user.metadata.items():
        print(f"{key}: {value}")