(#102) add a CI pipeline on GH-Actions

[nils-a]

and switch to releasing on GH-Actions

Description

Related Issue

fixes #102

Motivation and Context

#102

How Has This Been Tested?

sadly, not.

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
  Build

Checklist:

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• All new and existing tests passed.