added missing alias in container registry tests

[zikalino]

SUMMARY

This is to make sure that azure_rm_containerregistry_facts changes trigger azure_rm_containerregistry test.

ISSUE TYPE

• Bugfix Pull Request

COMPONENT NAME

azure_rm_containerregistry
azure_rm_containerregistry_facts

ANSIBLE VERSION

2.6

ADDITIONAL INFORMATION

[ansibot]

cc @haroldwongms @nitzmahone @trstringer @xscript @yaweiw @yuwzho
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[ansibot]

The test ansible-test sanity --test docs-build [explain] failed with 16 errors:

docs/docsite/rst/index.rst:0:0: unknown: 
docs/docsite/rst/index.rst:0:0: unknown: 
docs/docsite/rst/index.rst:0:0: unknown: 
docs/docsite/rst/index.rst:0:0: unknown: 
docs/docsite/rst/index.rst:0:0: unknown: ,,,,,,,,,,,,,,,,
docs/docsite/rst/index.rst:0:0: unknown: ,,,,,,,,,,,,,,,,,,,,,,,,,
docs/docsite/rst/index.rst:0:0: unknown: ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
docs/docsite/rst/index.rst:0:0: unknown: ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
docs/docsite/rst/index.rst:0:0: unknown: Configure your local user
docs/docsite/rst/index.rst:0:0: unknown: Generate certificate and private key
docs/docsite/rst/index.rst:0:0: unknown: More information
docs/docsite/rst/index.rst:0:0: unknown: Use signature-based authentication with Ansible
docs/docsite/rst/scenario_guides/guide_aci.rst:298:0: warning: Title level inconsistent:
docs/docsite/rst/scenario_guides/guide_aci.rst:306:0: warning: Title level inconsistent:
docs/docsite/rst/scenario_guides/guide_aci.rst:338:0: warning: Title level inconsistent:
docs/docsite/rst/scenario_guides/guide_aci.rst:350:0: warning: Title level inconsistent:

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