build: fixing git ls-remote call.
Supposed to fix:
(ERROR): config.h file not found. You can run 'build/windows/2_build-gimp-msys2.ps1' or configure GIMP to generate it.
… in MSIX and installer jobs.
Supposed to fix:
(ERROR): config.h file not found. You can run 'build/windows/2_build-gimp-msys2.ps1' or configure GIMP to generate it.
… in MSIX and installer jobs.