* fix: make gha checks (docs, build, etc) triggered by main workflows

Black, Isort, Build, Docs and API checks can now only be launched by other workflows
Add a workflow to check commits on branch other than main
Regroup the workflows for PR
Regroup the workflows for the main branch
Fix README.md
Update CHANGELOG

* fix: main.yml trigger

* fix: change bump to tag_release in main.yml and trim