fix: use standard main function on MinGW

[aminya]

Description

Once you define the CATCH_CONFIG_MAIN definition on MinGW, it defines a non-standard main function called WinMain. This results in a lot of undefined references. This doesn't happen with other compilers.

This check ensures that the standard main file is used with MinGW.

GitHub Issues

Fixes #2437

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 90.08%. Comparing base (a7782d1) to head (40d1268).

Additional details and impacted files

@@           Coverage Diff           @@
##             v2.x    #2441   +/-   ##
=======================================
  Coverage   90.08%   90.08%           
=======================================
  Files         113      113           
  Lines        5040     5040           
=======================================
  Hits         4540     4540           
  Misses        500      500           

[protos-gunzinger]

Hello there, first of all thank you for your PR. Seeing as this problem still exists / happened to me now in April of 2024, is there any reason this was never addressed/merged?

[aminya]

Fixed the conflicts so that it could be merged.