azurerm_kubernetes_cluster - Deprecate network_profile.docker_bridge_cidr since it's not longer supported by API

[lonegunmanb]

According to the document:

Docker is no longer supported as of September 2022.

This pr loose the original restriction: ``docker_bridge_cidr, dns_service_ip` and `service_cidr` should all be empty or all should be set"`, now we can just omit `docker_bridge_cidr`.

This pr should fix #18119 and this aks module issue

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I've also received an email said:

We've detected that one or more of your subscription(s) are using the Docker Bridge CIDR field in the AKS API. This field is currently ignored by default and not validated, as it was made redundant during our change from Docker to containerD in Kubernetes version 1.19. Starting from April 2023 with the release of the 2023-04-01 AKS API version, the Docker Bridge CIDR field functionality will be removed. However, it will still be supported in all preexisting API versions without new updates. The April API will be fully implemented and available by 26 May 2023.

[stephybun]

Thanks @lonegunmanb LGTM 🍉

[github-actions]

This functionality has been released in v3.49.0 of the Terraform Provider. Please see the Terraform documentation on provider versioning or reach out if you need any assistance upgrading.

For further feature requests or bug reports with this functionality, please create a new GitHub issue following the template. Thank you!

[github-actions]

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