v0.4.0

What’s changed

🧰 Maintenance

• Cleanup repository @frenck (#55)
• Happy New Year @frenck (#57)
• Upgrade Code of Conduct @frenck (#58)
• Add new repository workflow @frenck (#59)
• Allow dependabot to upgrade Python dependencies @frenck (#60)

⬆️ Dependency updates

• ⬆️ Bump actions/stale from v3.0.14 to v3.0.15 @dependabot (#62)
• Upgrade add-on base image to 9.1.0 @frenck (#61)