v0.2.1

What's Changed

• Fix references by @kitagry in #55
• Fix references by @kitagry in #56
• Bump github.com/open-policy-agent/opa from 0.37.0 to 0.40.0 by @dependabot in #57
• Bump github.com/open-policy-agent/opa from 0.40.0 to 0.42.0 by @dependabot in #58
• Upgrade go version by @kitagry in #59

Full Changelog: 0.2.0...v0.2.1