Release script should keep you on release branch

[starryeyez024]

Description of the issue

The release script returns you to the master branch, but it should leave you on the release branch so you can commit the doc updates.

Impacted

• Tag release creation

Steps to reproduce

https://docs.google.com/document/d/1lKAazbjIRYwCwpydewuAamxd8fIMLv2PSWw4r7uEC5I/edit?disco=AAAAEH_3quE

[castastrophe]

May I close this one out in favor of migrating the release script to GitHub Actions: #386

[castastrophe]

Please re-open if you think this is still needed! Thanks!