v1.4.0

What's Changed

• Use GitHub Actions instead of Travis CI by @hasghari in #9
• Add rubocop to project by @hasghari in #10
• Use ActiveSupport::Concern to clean up dependencies by @hasghari in #11
• Bump rake to version 12.3.3 by @hasghari in #12
• Move CC_TEST_REPORTER_ID into GitHub secrets by @hasghari in #13
• Fix bundle path configuration by @hasghari in #14
• Add appraisal for Rails 6.1 and bump version by @hasghari in #15

Full Changelog: v1.3.0...v1.4.0