Every call acquires a new token!

### Description

This PR disabled token caching: https://github.com/Azure/azure-powershell/pull/20336

It appears that this is still disabled? I am seeing new tokens being requested for every operation.

Here?
https://github.com/Azure/azure-powershell/blob/ee0cd2a70e331ab73c1104e1d52543eafdfd3425/src/Accounts/Authenticators/ServicePrincipalAuthenticator.cs#L53

### Issue script & Debug output

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### Environment data

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### Module versions

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### Error output

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Start by reading src/Accounts/Authenticators/ServicePrincipalAuthenticator.cs at the linked line and review the token-caching change in Azure PowerShell PR 20336. Reproduce the reported behavior with repeated operations, then verify that subsequent operations reuse the token instead of requesting a new one each time.

Written by the indexing model from the issue text.