CONAN_BASE_PROFILE_BUILD is incorrectly passed to docker

[jmarrec]

Changelog: (Fix): This is a draft PR that is just a work in progress trying to pass CONAN_BASE_PROFILE_BUILD to docker

Note: This is a draft PR as it currently doesn't work and includes lots of print-debugging (some of which I don't even see in the logs). It is just meant to serve as a point of discussion on #595. It will either be cleaned up or closed.

A failing example of an actual run that uses this patched cpt can be found here: https://github.com/jmarrec/conan-openstudio-ruby/runs/4852398264?check_suite_focus=true

Actual changes without debug-printing: https://github.com/conan-io/conan-package-tools/compare/1fce6c3a42e27022fdeceac6614dfeea85b61f14

• references https://github.com/conan-io/conan-package-tools/issues/595
• [ ] If the issue has missing info, explain the purpose/use case/pain/need that covers this Pull Request.
• [x] I've read the Contributing guide.
• [x] I've followed the PEP8 style guides for Python code.

[CLAassistant]

All committers have signed the CLA.

[Croydon]

Is this PR obsolete?

[jmarrec]

@Croydon Non functional rather, but the need is still here, though I've worked around it since then. I'm fine closing if no one has the bandwith to help out finish it though.

[Croydon]

I don't understand the issue currently, the CI logs got deleted in the meantime and the referenced issue closed as solved 🤔

[jmarrec]

Meh, let's assume it's fine. Closing then :)