CI: fix OSGeo4W download URL (#2384)

.github/workflows/osgeo4w.yml

@@ -33,7 +33,7 @@ jobs:
           $exe = 'osgeo4w-setup.exe'
           $url = 'http://download.osgeo.org/osgeo4w/v2/' + $exe
           (New-Object System.Net.WebClient).DownloadFile($url, $exe)
-          Start-Process ('.\'+$exe) -ArgumentList '-A -g -k -q -s http://download.osgeo.org/x86_64 -P proj-devel,gdal-devel,geos-devel,libtiff-devel,libpng-devel,pdal-devel,netcdf-devel,cairo-devel,fftw,freetype-devel,gdal-ecw,gdal-mrsid,liblas-devel,libxdr,libpq-devel,pdcurses,python3-matplotlib,python3-numpy,python3-ply,python3-pywin32,python3-six,python3-wxpython,regex-devel,wxwidgets-devel,zstd-devel' -Wait
+          Start-Process ('.\'+$exe) -ArgumentList '-A -g -k -q -s http://download.osgeo.org/osgeo4w/v2/ -P proj-devel,gdal-devel,geos-devel,libtiff-devel,libpng-devel,pdal-devel,netcdf-devel,cairo-devel,fftw,freetype-devel,gdal-ecw,gdal-mrsid,liblas-devel,libxdr,libpq-devel,pdcurses,python3-matplotlib,python3-numpy,python3-ply,python3-pywin32,python3-six,python3-wxpython,regex-devel,wxwidgets-devel,zstd-devel' -Wait
 
       - name: Install MSYS2 packages
         run: C:\msys64\usr\bin\pacman.exe --noconfirm -S tar libintl make bison flex diffutils git dos2unix zip mingw-w64-x86_64-toolchain mingw-w64-x86_64-cairo mingw-w64-x86_64-fftw mingw-w64-x86_64-lapack mingw-w64-x86_64-pkg-config mingw-w64-x86_64-gcc mingw-w64-x86_64-ccache mingw-w64-x86_64-zlib mingw-w64-x86_64-libiconv mingw-w64-x86_64-bzip2 mingw-w64-x86_64-gettext mingw-w64-x86_64-libsystre mingw-w64-x86_64-libtre-git mingw-w64-x86_64-libwinpthread-git mingw-w64-x86_64-libpng mingw-w64-x86_64-pcre mingw-w64-x86_64-python3-six