{Container} `az container create`: Remove ad-hoc api version of network

[necusjz]

https://github.com/Azure/azure-cli/issues/23389

Related command

az container create

Description

Affected test scenario: test_container_create_with_vnet

Testing Guide

History Notes

[Component Name 1] BREAKING CHANGE: az command a: Make some customer-facing breaking change [Component Name 2] az command b: Add some customer-facing feature

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[yonzhan]

Container