Enable enums as ints for otlp messages, switch to jsoniter for responses.

[bogdandrutu]

No description provided.

[codecov]

Codecov Report

Base: 92.04% // Head: 92.08% // Increases project coverage by +0.04% 🎉

Coverage data is based on head (e4b28a5) compared to base (c157b12).
Patch coverage: 95.83% of modified lines in pull request are covered.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #6345      +/-   ##
==========================================
+ Coverage   92.04%   92.08%   +0.04%     
==========================================
  Files         219      219              
  Lines       13250    13319      +69     
==========================================
+ Hits        12196    12265      +69     
  Misses        830      830              
  Partials      224      224              

Impacted Files	Coverage Δ
pdata/plog/plogotlp/logs.go	51.06% <0.00%> (ø)
pdata/pmetric/pmetricotlp/metrics.go	55.81% <0.00%> (ø)
pdata/ptrace/ptraceotlp/traces.go	51.06% <0.00%> (ø)
pdata/plog/internal/plogjson/json.go	98.40% <100.00%> (+0.36%)	⬆️
pdata/pmetric/internal/pmetricjson/json.go	100.00% <100.00%> (ø)
pdata/ptrace/internal/ptracejson/json.go	100.00% <100.00%> (ø)

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