Configure azurerm_container_registry_token

[lippertmarkus]

Description of your changes

I have:

• Read and followed Crossplane's contribution process.
• Run make reviewable test to ensure this PR is ready for review.

How has this code been tested

[ulucinar]

Hi @lippertmarkus,
We generally require PRs introducing new MRs (Managed Resource) to also include a tested example manifest under the appropriate API group folder examples/<API group>. Could you please also provide an example manifest? You can also test this PR with that example manifest and specify this under the "How has this code been tested" section.

We also require GPG-signed commits and a sign-off in the commit message (e.g., commit message generated with git commit -s).

Thank you very much!

[lippertmarkus]

Thanks! I'll need some days to get back to this and figure out how I can test this. Do you have a guide on how to test? Building a new provider/controller image and use them? Found the steps for configuring a resource but nothing on testing.