Fix copy-dlls.bat for current version of libcups.
:: Script to copy dependent DLLs to the named build directory
-copy packages\libcups2_native.redist.2.4.0.2\build\native\bin\x64\Debug\*.dll %1
+copy packages\libcups2_native.redist.2.4.2.1\build\native\bin\x64\Debug\*.dll %1
copy packages\libjpeg-turbo-v142.2.0.4.3\build\native\bin\x64\v142\Debug\*.dll %1
copy packages\libpng_native.redist.1.6.30\build\native\bin\x64\Debug\*.dll %1
copy packages\libpng_native.redist.1.6.30\build\native\bin\x64\Release\*.dll %1
