Define a type for onChange func instead of func pointer

[bogdandrutu]

Signed-off-by: Bogdan Drutu bogdandrutu@gmail.com

[codecov]

Codecov Report

Merging #4656 (01a3386) into main (aadec29) will decrease coverage by 0.00%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main    #4656      +/-   ##
==========================================
- Coverage   90.52%   90.52%   -0.01%     
==========================================
  Files         179      179              
  Lines       10641    10638       -3     
==========================================
- Hits         9633     9630       -3     
  Misses        785      785              
  Partials      223      223              

Impacted Files	Coverage Δ
config/configmapprovider/env.go	100.00% <100.00%> (ø)
config/configmapprovider/file.go	100.00% <100.00%> (ø)
config/configmapprovider/properties.go	90.62% <100.00%> (ø)
service/internal/telemetrylogs/logger.go	85.71% <0.00%> (-0.96%)	⬇️

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[codeboten]

Just confirming this is a change to improve the usability of the interface? I didn't see an issue associated or a description for the change.

[bogdandrutu]

@codeboten yes, this PR is just to offer a more intuitive API, essentially instead of relying on the name of the variable to suggest what the function does, we define a type with a good name.