Tests: re-vote with updated rationale

[kneerose]

List of changes

• remove test skip of vote with rationale
• add test to updated rationale of already voted governance action

Checklist

• related issue
• My changes generate no new warnings
• My code follows the style guidelines of this project
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the changelog
• I have added tests that prove my fix is effective or that my feature works

[github-actions]

✅ All checks succeeded

[github-actions]

✅ All checks succeeded

[github-actions]

✅ All checks succeeded

[mesudip]

Awesome