Update version to 2.3.0 in project files

[wagnerdelima]

Description

Please include changes' summary that your pull request entails.

Fixes # (issue)

Checklist

• [ ] Do unit tests run with no errors?
• [ ] Has coverage not decreased?
• [ ] Is your code concise and clean?
• [ ] Are the conf.py and installation sphinx updated with the new version?
• [ ] Is the init.py version variable updated?