New stdoutmetric encoder with ignore timestamp

[Petrie]

Resolve: #3223

[codecov]

Codecov Report

Merging #3828 (11a1346) into main (e463505) will increase coverage by 0.1%.
The diff coverage is 96.2%.

Additional details and impacted files

@@           Coverage Diff           @@
##            main   #3828     +/-   ##
=======================================
+ Coverage   81.6%   81.7%   +0.1%     
=======================================
  Files        169     169             
  Lines      12489   12570     +81     
=======================================
+ Hits       10201   10281     +80     
- Misses      2073    2074      +1     
  Partials     215     215             

Impacted Files	Coverage Δ
exporters/stdout/stdoutmetric/encoder.go	100.0% <ø> (ø)
exporters/stdout/stdoutmetric/exporter.go	97.1% <96.0%> (-2.9%)	⬇️
exporters/stdout/stdoutmetric/config.go	75.4% <100.0%> (+2.5%)	⬆️

... and 1 file with indirect coverage changes

[MrAlias]

The approach showcased in #3529 added an option instead of a dedicated encoder. That approach would apply to all encoders instead of a single one.

Should that approach be taken instead?

[Petrie]

The approach showcased in #3529 added an option instead of a dedicated encoder. That approach would apply to all encoders instead of a single one.

Should that approach be taken instead?

I apologize for not noticing the "POC" pull request. After reviewing the code structure, I believe it is more organized than mine. I will refactor my code to avoid using a dedicated encoder.

[MrAlias]

Over all looks good. The testing needs some coverage added to it.

[MrAlias]

Please be sure to add a changelog entry.

[pellared]

I have forgotten to click "submit review" a few hours ago 😆