feat: add simple release script

[tippenein]

• automatically checkout release/next
• update Cargo/locks
• update packages and locks for npm projects
  • Note: vscode project prompts for new version since it's not synced with the top-level project
• commit and push the branch

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

📢 Thoughts on this report? Let us know!

[hugocaillard]

Looking good 🙌
Could you add a brief explanation of how to use it (so that one can simply copy-paste the bash command), as a comment i guess

[hugocaillard]

lgtm! thanks @tippenein
Can't wait for the next release