Keep cibuildwheel at 0.12.0 since 1.0.0 breaks stdint.h copying

Author: edenhill

tools/windows-build.bat

@@ -10,7 +10,7 @@ set
 rem Download and install librdkafka from NuGet.
 call tools\windows-install-librdkafka.bat %LIBRDKAFKA_NUGET_VERSION% dest || exit /b 1
 
-pip install cibuildwheel || exit /b 1
+pip install cibuildwheel==0.12.0 || exit /b 1
 
 rem Build wheels (without tests)
 cibuildwheel --platform windows --output-dir wheelhouse || exit /b 1