Bugfix for ContainerRegistry repository to parse out dependencies from metadata

[anamnavi]

PR Summary

For ContainerRegistry repositories, we currently check for dependencies from RequiredModules and PrivateData.ModuleList but Az modules will have it in ModuleList element not within PrivateData.

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[alerickson]

We should add a test to for this (manually adding the Az module to the 'psresourcegettest' ACR instance)