v0.7.0

What's Changed

• Bump golang.org/x/sync from 0.0.0-20210220032951-036812b2e83c to 0.2.0 by @dependabot in #80
• Bump golang.org/x/sync from 0.2.0 to 0.3.0 by @dependabot in #81
• Bump github.com/cloudwego/hertz from 0.6.4 to 0.6.5 by @dependabot in #82
• Bump github.com/paulmach/orb from 0.9.2 to 0.10.0 by @dependabot in #85
• Bump github.com/cloudwego/hertz from 0.6.6 to 0.6.7 by @dependabot in #86
• Refactor: del old codes, append more test cases by @ringsaturn in #87

Full Changelog: v0.6.0...v0.7.0