ci: update Github Action workflows

[Ingerid]

Changes:

• CI.yml: run tests with pytest every time a pull request is opened
• deployment.yml: remove workflow
• upload-package.yml: use poetry to publish to pypi
• release.yml:
  • user input "no_release": choose whether to create a github release + tag or not with the new version
  • user input "no_publish": choose whether to publish to testpypi and pypi.
  • add step to cache poetry installation with "actions/cache@v3", to speed up the action processing time
  • check validity of pyproject.toml
  • commit pyproject.toml automatically when the version is updated