Release build (v0.3.20)

What's Changed

• Bump ImageMagick to 7.1.1-30 by @vintagesucks in #132
• Bump actions/checkout from 4.1.1 to 4.1.2 by @dependabot in #131
• Bump peter-evans/create-pull-request from 6.0.1 to 6.0.2 by @dependabot in #130

Full Changelog: v0.3.19...v0.3.20