v1.3.1

• bump dependencies
• change CI from travis to github actions

What's Changed

• Bump stylus from 0.54.8 to 0.55.0 by @dependabot in #53
• Bump stylus from 0.55.0 to 0.57.0 by @dependabot in #63
• Bump mocha from 8.3.2 to 10.0.0 by @dependabot in #65
• Bump chai from 4.3.4 to 4.3.6 by @dependabot in #60
• Create test.yml by @ryuran in #66
• Create publish.yml by @ryuran in #67
• Delete .travis.yml by @ryuran in #68

Full Changelog: v1.3.0...v1.3.1