docs(changelog): add break changes section

[appleboy]

fixed #3167

Already updated in Tag description.

[codecov]

Codecov Report

Merging #3170 (d69351f) into master (5fa3452) will not change coverage.
The diff coverage is n/a.

❗ Current head d69351f differs from pull request most recent head f59c864. Consider uploading reports for the commit f59c864 to get more accurate results

@@           Coverage Diff           @@
##           master    #3170   +/-   ##
=======================================
  Coverage   98.22%   98.22%           
=======================================
  Files          43       43           
  Lines        3148     3148           
=======================================
  Hits         3092     3092           
  Misses         44       44           
  Partials       12       12           

Flag	Coverage Δ
go-1.14	98.22% <ø> (ø)
go-1.15	98.06% <ø> (ø)
go-1.16	98.03% <ø> (ø)
go-1.17	97.96% <ø> (ø)
go-1.18	97.96% <ø> (ø)
macos-latest	98.22% <ø> (ø)
nomsgpack	98.19% <ø> (ø)
ubuntu-latest	98.22% <ø> (ø)

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