Windows: Use PyInstaller version 4.2

PyInstaller 3.6 fixed the MinGW build issue we used a patch for:

pyinstaller/pyinstaller@6df55e4

but version 4.2 broke the MinGW build again:

pyinstaller/pyinstaller@99db9ab

this fails with `windres: no resources` because the preprocessed RC file
is essentially empty. Windows RC seems to ignore this. To fix it we add
a patch that just removes the RC file build:

EchterAgo/pyinstaller@d6f3d02

contrib/build-wine/_build.sh

@@ -61,7 +61,7 @@ prepare_wine() {
         LIBUSB_COMMIT=c6a35c56016ea2ab2f19115d2ea1e85e0edae155 # Version 1.0.24
 
         PYINSTALLER_REPO='https://github.com/EchterAgo/pyinstaller.git'
-        PYINSTALLER_COMMIT=1a8b2d47c277c451f4e358d926a47c096a5615ec
+        PYINSTALLER_COMMIT=d6f3d02365ba68ffc84169c56c292701f346110e # Version 4.2 + a patch to drop an unused .rc file
 
         # Satochip pyscard
         PYSCARD_FILENAME=pyscard-1.9.9-cp36-cp36m-win32.whl  # python 3.6, 32-bit