rtaudio: move to pkgs/by-name and rename to rtaudio_5

this shouldn't create any rebuilds

pkgs/by-name/rt/rtaudio_5/package.nix

@@ -10,7 +10,7 @@
   pulseaudioSupport ? config.pulseaudio or stdenv.hostPlatform.isLinux,
   libpulseaudio,
   jackSupport ? true,
-  jack,
+  libjack2,
   coreaudioSupport ? stdenv.hostPlatform.isDarwin,
 }:
 
@@ -34,7 +34,7 @@ stdenv.mkDerivation rec {
   buildInputs =
     lib.optional alsaSupport alsa-lib
     ++ lib.optional pulseaudioSupport libpulseaudio
-    ++ lib.optional jackSupport jack;
+    ++ lib.optional jackSupport libjack2;
 
   cmakeFlags = [
     "-DRTAUDIO_API_ALSA=${if alsaSupport then "ON" else "OFF"}"

pkgs/top-level/all-packages.nix

@@ -3597,9 +3597,7 @@ with pkgs;
 
   rocket = libsForQt5.callPackage ../tools/graphics/rocket { };
 
-  rtaudio = callPackage ../development/libraries/audio/rtaudio {
-    jack = libjack2;
-  };
+  rtaudio = rtaudio_5;
 
   rtmidi = callPackage ../development/libraries/audio/rtmidi {
     jack = libjack2;