Update identity to 2.0.0-beta.4 for ai-anomaly-detector

[KarishmaGhiya]

Update identity to 2.0.0-beta.4 for @azure/ai-anomaly-detector

Related epic - #14581

Instructions:

• Replace tenant id. tenantId now can't be an invalid tenantId, so use the recorder's replaceableVariables to set one like 12345678-1234-1234-1234-123456789012.
• Re-record the NodeJS tests, since MSAL does some more recordings.
• If you find any issues while upgrading, please report them in this issue.
• Reference PR - [Synapse Artifacts] Update identity version ad re do recordings #15704 and Updating identity v2 beta versions for identity tests and reverting to GA version v1 for samples #15654

[ramya-rao-a]

@joheredi Can we target this milestone to get this done? We are almost at the end of updating all packages to use the latest Identity preview package in their tests!