Fix ScalaModule#console by properly inheriting streams
#3500
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SystemStreamswithStreams(SystemStreams.original)didn't quite do the right thing because it continued to use thePumpedProcess*puts for subprocesses rather than directly inheriting the streams. This fixes it.Tested manually via
./mill dist.launcher && (cd example/scalalib/basic/1-simple && ../../../../out/dist/launcher.dest/run -i console), which previously would printUnable to create system terminaland not allow keyboard navigation in the REPL, and with this PR it no longer warns and keyboard navigation works correctlyFixes #3491