audio: rename to 'sysaudio'

.gitmodules

@@ -28,6 +28,6 @@
 [submodule "glfw/upstream"]
 	path = glfw/upstream
 	url = https://github.com/hexops/glfw
-[submodule "audio/upstream"]
+[submodule "sysaudio/upstream"]
-	path = audio/upstream
+	path = sysaudio/upstream
 	url = https://github.com/hexops/soundio

sysaudio/build.zig

@@ -4,7 +4,7 @@ const Builder = std.build.Builder;
 const soundio_path = thisDir() ++ "/upstream/soundio";
 
 pub const pkg = std.build.Pkg{
-    .name = "audio",
+    .name = "sysaudio",
     .source = .{ .path = thisDir() ++ "/src/main.zig" },
 };