chore(master): release 0.2.0

[github-actions]

🤖 I have created a release beep boop

0.2.0 (2023-05-14)

⚠ BREAKING CHANGES

• remove Empty type (use any instead) (#135)
• move encoding logic to sub-package (#111)

Features

• encoding: support more media type aliases (#115) (d88115c)
• encoding: support protocol buffers (#117) (ace6006)
• encoding: support toml (#114) (e95b4ae)

Bug Fixes

• no content issues on error or pointer to Empty (#125) (fa50d36)

Performance Improvements

• encoding/protobuf: cache reflection results (#138) (99e0cea)
• encoding: improve encoding performance (#113) (a541544)
• reuse requests to reduce allocs (#127) (827209b)

Code Refactoring

• move encoding logic to sub-package (#111) (8f50031)
• remove Empty type (use any instead) (#135) (72848e8)

---

This PR was generated with Release Please. See documentation.

[github-actions]

🤖 Release is at https://github.com/abemedia/go-don/releases/tag/v0.2.0 🌻

[github-actions]

Benchmark Result

Benchmark diff with base branch

goos: linux
goarch: amd64
pkg: github.com/abemedia/go-don
cpu: Intel(R) Xeon(R) Platinum 8171M CPU @ 2.60GHz
                         │ bench-master.txt │           bench-new.txt            │
                         │      sec/op      │   sec/op     vs base               │
Handler/Request-2               422.2n ± 2%   404.4n ± 4%  -4.23% (p=0.002 n=10)
Handler/RequestPointer-2        474.2n ± 2%   477.5n ± 8%       ~ (p=0.494 n=10)
geomean                         447.5n        439.4n       -1.80%

                         │ bench-master.txt │            bench-new.txt            │
                         │       B/op       │    B/op     vs base                 │
Handler/Request-2                24.00 ± 0%   24.00 ± 0%       ~ (p=1.000 n=10) ¹
Handler/RequestPointer-2         24.00 ± 0%   24.00 ± 0%       ~ (p=1.000 n=10) ¹
geomean                          24.00        24.00       +0.00%
¹ all samples are equal

                         │ bench-master.txt │            bench-new.txt            │
                         │    allocs/op     │ allocs/op   vs base                 │
Handler/Request-2                1.000 ± 0%   1.000 ± 0%       ~ (p=1.000 n=10) ¹
Handler/RequestPointer-2         1.000 ± 0%   1.000 ± 0%       ~ (p=1.000 n=10) ¹
geomean                          1.000        1.000       +0.00%
¹ all samples are equal