Motivation

Due to deprecations and dead projects (apigentools), CI/CD previosly created cannot be updated and generation is affected by poor code (expecially for python client).
Revamp CI/CD pipeline with pure official components to have a mainstream release based on openapi-generators.

Reviewer checklist

• PR address a single concern.
• PR title and description are properly filled.
• Changes will be merged in master.
• Changes are covered by tests.
• Logging is meaningful in case of troubleshooting.
• History is clean, commit messages are meaningful (see CONTRIBUTING.md) and are well formatted.
• Mentioned the Analytics team when there are schema changes.