chore(master): release 0.2.1

[github-actions]

🤖 I have created a release beep boop

0.2.1 (2023-06-04)

Bug Fixes

• content-length is 0 when responding with nil value (#148) (9cf40b2)

Performance Improvements

• encoding/text: reduce allocs (#142) (5759715)
• improve pool performance for pointer types (#147) (d9464de)

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[codecov]

Codecov Report

Patch coverage has no change and project coverage change: +2.45 🎉

Comparison is base (2c1fc5c) 95.89% compared to head (9a0be7b) 98.35%.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #143      +/-   ##
==========================================
+ Coverage   95.89%   98.35%   +2.45%     
==========================================
  Files          24       24              
  Lines         853      850       -3     
==========================================
+ Hits          818      836      +18     
+ Misses         24        9      -15     
+ Partials       11        5       -6     

see 2 files with indirect coverage changes

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[github-actions]

🤖 Release is at https://github.com/abemedia/go-don/releases/tag/v0.2.1 🌻