[19452] Switch master to 3.0.x

[EduPonz]

Description

This PR makes master branch become 3.0.

Contributor Checklist

• [x] Commit messages follow the project guidelines.
• [x] Code snippets related to the added documentation have been provided.
• [x] Documentation tests pass locally.
• N/A: Applicable backports have been included in the description.

Reviewer Checklist

• [x] The PR has a milestone assigned.
• [ ] The title and description correctly express the PR's purpose.
• [ ] Check contributor checklist is correct.
• [ ] CI passes without warnings or errors.