Skip PSModule caching in container jobs

[benbp]

Containers should bake modules into the image to save on pipeline time.

[weshaggard]

I think this might be an OK workaround for now but I suspect it is going to cause other breaks where the images we use don't end up having a valid version of the modules we might be looking for. However I guess if folks are doing the right things it should just cause them to need to download them so it will mostly be a perf and reliability issue.

[azure-sdk]

The following pipelines have been queued for testing:
java - template
java - template - tests
js - template
net - template
net - template - tests
python - template
python - template - tests
You can sign off on the approval gate to test the release stage of each pipeline.
See eng/common workflow

[azure-sdk]

The following pipelines have been queued for testing:
java - template
java - template - tests
js - template
net - template
net - template - tests
python - template
python - template - tests
You can sign off on the approval gate to test the release stage of each pipeline.
See eng/common workflow

[azure-sdk]

The following pipelines have been queued for testing:
java - template
java - template - tests
js - template
net - template
net - template - tests
python - template
python - template - tests
You can sign off on the approval gate to test the release stage of each pipeline.
See eng/common workflow

[benbp]

I think this might be an OK workaround for now but I suspect it is going to cause other breaks where the images we use don't end up having a valid version of the modules we might be looking for. However I guess if folks are doing the right things it should just cause them to need to download them so it will mostly be a perf and reliability issue.

I think we should keep that problem scoped to an image management issue though, rather than as a workaround with environment setup. If we start using container images for testing more broadly, then these images should be testable locally. Right now our pipeline environment setup is not reproducible locally, but we have an opportunity to achieve this if we don't rely on yaml orchestrated setup for container testing. I don't think maintaining an az module version and related things across our image inventory is going to have to be very hands on.

[benbp]

/check-enforcer override

[ghost]

Hello @azure-sdk!

Because this pull request has the auto-merge label, I will be glad to assist with helping to merge this pull request once all check-in policies pass.

p.s. you can customize the way I help with merging this pull request, such as holding this pull request until a specific person approves. Simply @mention me (@msftbot) and give me an instruction to get started! Learn more here.