azurerm_web_pubsub_hub - remove uai validation to support token audience as a valid input

[xiaxyi]

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Description

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Changes to existing Resource / Data Source

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Testing

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--- PASS: TestAccWebPubsubHub_usingAuthTokenAudience (235.14s)
--- PASS: TestAccWebPubsubHub_usingAuthGuid (251.78s)
--- PASS: TestAccWebPubsubHub_usingAuthUpdate (416.97s)
PASS
ok github.com/hashicorp/terraform-provider-azurerm/internal/services/signalr 441.325s

Change Log

Below please provide what should go into the changelog (if anything) conforming to the Changelog Format documented here.

• azurerm_resource - support for the thing1 property [GH-00000]

This is a (please select all that apply):

• Bug Fix
• New Feature (ie adding a service, resource, or data source)
• Enhancement
• Breaking Change

Related Issue(s)

Fixes #28086

Note

If this PR changes meaningfully during the course of review please update the title and description as required.

[catriona-m]

Hi @xiaxyi thanks for submitting this. I left one suggestion inline for you to consider, but once that is addressed I can take another look. Thanks!

[catriona-m]

rather than removing the existing validation, would it be possible to include additional validation for the token audience instead?

[xiaxyi]

@catriona-m Thanks for the review! I checked the api definition and also confirmed with the service team. There isn't any validation to the user's input of the string, any string set to this managed_identity_id will be accepted by the api, however, there will be error when the token is actually used. So I don't think we need to add any validation to it neither, WDYT?

[catriona-m]

thanks @xiaxyi - if this can be any string then I think we can leave this as it is

[xiaxyi]

@catriona-m Please see my response inline. let me know if you have any questions. Thanks!