Refactor podman-py project structure

[inknos]

This Issue was originally a PR, since the changes are too many to do all at once, I am closing it in favor of splitting it in multiple steps. This is the original PR

---

• Update python version's support Bump release to 5.3.0 and drop python<3.8 #469

  • Remove EOL Python Versions
  • Add latest Python Versions

• Add pre-commit Add pre-commit workflow #473

  • Add configurations and checks
  • Add pre-commit workflow

• Update linting to modern and more safe standards Add pre-commit workflow #473

  • Move linting and formatting workflows out of the cirrus automation
  • Remove pylint and black custom code and use a unified tool to lint and format in a single environment
  • At this stage, Cirrus is still the automation used for testing. Add pre-commit workflow #473 (comment)
  • Keep the support with Makefile for linting locally

• Enable security and code sanity checks Enable many ruff checks #476

• Delegate the project to pyproject.toml Use pyproject toml and enable workflow for publishing on PyPI #480

  • remove unused files setup.py, setup.cfg, *requirements.txt
  • split the package dependencies and package testing in a separate package
  • split the package dependencies and package docs in a separate package

• Automate the release process on PyPI Use pyproject toml and enable workflow for publishing on PyPI #480

• Remove the dependency from Cirrus and rely on TMT for testing Improve testing against distro and podman-next #548 (comment)

  • Run linting on TMT for Fedora Stable only Onboard TMT #503
  • Run coverage checks on TMT for Fedora Stable only Enable Unit test coverage upstream #531
  • Run upstream integration tests on TMT for Fedora, Centos and EPEL Add upstream tests to tmt #509
  • Run downstream tests on TMT Enable tmt downstream #522