Does the Expire Time of AccessToken Make Sense

### Description

The following code snippet is to manually sets the expire time of access token. But token's real expire time is earlier. Can we find a better way to handle it?
``` csharp
public override AccessToken GetToken(TokenRequestContext requestContext, CancellationToken cancellationToken)
{
AccessToken token;
this.accessToken.AuthorizeRequest((tokenType, tokenValue) =>
{
token = new AccessToken(tokenValue, DateTimeOffset.UtcNow);
});

return token;
}

public override ValueTask GetTokenAsync(TokenRequestContext requestContext, CancellationToken cancellationToken)
{
AccessToken token;
this.accessToken.AuthorizeRequest((tokenType, tokenValue) =>
{
token = new AccessToken(tokenValue, DateTimeOffset.UtcNow);
});

return new ValueTask(token);
}
}
}
```
The related source codes
- src/CosmosDB/CosmosDB/Helpers/CosmosDBSessionCredential.cs
- src/Storage/Storage/Common/AzureSessionCredential.cs
- src/Synapse/Synapse/Common/AzureSessionCredential.cs

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### Error output

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