azurerm_container_app - Set resource id right after resource is created

[magodo]

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Description

Creating the azurerm_container_app is an async operation, especially that the LRO part includes pulling container images, which can fail if configured incorrectly.

This PR is to move up the resource set in TF right after the "sync" part of the creation succeeded and the resource record created in Azure. The benefit is that even if the LRO part later failed, users won't have to manually import and delete the resource themselves.

PR Checklist

• I have followed the guidelines in our Contributing Documentation.
• I have checked to ensure there aren't other open Pull Requests for the same update/change.
• I have checked if my changes close any open issues. If so please include appropriate closing keywords below.
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  For example: “resource_name_here - description of change e.g. adding property new_property_name_here”

Changes to existing Resource / Data Source

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Testing

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Change Log

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

• azurerm_container_app - Set resource id right after resource is created [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 #28511

Note

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