Add release workflow

[staticdev]

• Add release workflow - for it to work properly Github settings must have 2 secrets:
  • PYPI_TOKEN - to send releases to pypi.org (when version on pyproject.toml changes)
  • TEST_PYPI_TOKEN - to send non-release versions to test.pypi.org
• Upgrade base python version for workflows from 3.8 to 3.9.
• Pin version of pip, poetry and virtualenv used in all workflows.
• Made consistent the checkout, python setup and dependency installation in all workflows.
• Commented temporarily circular dependencies that use isort for a release.
• Commented temporarily also linting script since it uses mostly the dependencies commented.