Allow Windows to run the FetchTest

[jonasraoni]

This isn't ready to be merged (the updates were merged to the donatj/mock-webserver, but he didn't release a package yet), just a proof-of-concept 😅

[codecov[bot]]

Codecov Report

Merging #52 (bdc3e7a) into main (c6d0be5) will decrease coverage by 0.07%. The diff coverage is n/a.

@@             Coverage Diff              @@
##               main      #52      +/-   ##
============================================
- Coverage     88.65%   88.57%   -0.08%     
  Complexity      485      485              
============================================
  Files             7        7              
  Lines          1260     1252       -8     
============================================
- Hits           1117     1109       -8     
  Misses          143      143              

Impacted Files	Coverage Δ
src/BagUtils.php	92.04% <0.00%> (-0.35%)	:arrow_down:
src/Bag.php	85.96% <0.00%> (-0.08%)	:arrow_down:

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[jonasraoni]

Hi @whikloj, a new version of the mock-webserver has been released, so this one is finally ready to be reviewed/merged 😁