Fix github workflows

[atteggiani]

Fixes #54.

• Fixes CD.yml
• Fixes CI.yml

This repo's variable PACKAGE_FORMAT has been set to .tar.bz2.

The Verify Conda Build job now succeeds.

[CodeGat]

This looks good.
You could hypothetically have the Set package path step be an env variable itself, but you'd have to move the env.BUILD_FOLDER up a level into a workflow-level env, which I understand why you didn't!

[atteggiani]

This looks good. You could hypothetically have the Set package path step be an env variable itself, but you'd have to move the env.BUILD_FOLDER up a level into a workflow-level env, which I understand why you didn't!

If you mean having a BUILD_FOLDER and a PACKAGE_PATH env variables at the workflow level, I would be ok with that.
However, I could not set an environment variable dependent on another env variable, something like:

env:
      BUILD_FOLDER: ${{github.workspace}}/build
      PACKAGE_PATH: ${{env.BUILD_FOLDER}}/noarch/*${{vars.PACKAGE_FORMAT}}

because I got complaints about env not being recognised.
Do you know if something like this can be achieved?