Move test funcs that load entire config to servicetest

[bogdandrutu]

Updates #4605

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

[codecov]

Codecov Report

Merging #4606 (0560bce) into main (eb6f051) will decrease coverage by 0.03%.
The diff coverage is 57.89%.

@@            Coverage Diff             @@
##             main    #4606      +/-   ##
==========================================
- Coverage   90.75%   90.71%   -0.04%     
==========================================
  Files         178      179       +1     
  Lines       10563    10567       +4     
==========================================
  Hits         9586     9586              
- Misses        759      763       +4     
  Partials      218      218              

Impacted Files	Coverage Δ
config/configtest/configtest.go	91.95% <0.00%> (+0.95%)	⬆️
service/servicetest/configprovider.go	64.70% <64.70%> (ø)

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