games/punchy: update to 0.2.1

Changes: https://github.com/fishfolks/punchy/releases/tag/v0.1.0
Changes: https://github.com/fishfolks/punchy/releases/tag/v0.2.0
Changes: https://github.com/fishfolks/punchy/releases/tag/v0.2.1
Reported by: GitHub (watch releases)