Fix emulator stdout/stderr pipe inheritance in StartAvd

Redirect stdout/stderr on the emulator process so it doesn't
inherit the caller's pipes. Without this, parent processes
(e.g. VS Code spawn with stdio:'pipe') never see the 'close'
event because the emulator holds the pipes open indefinitely.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: rmarinho

src/Xamarin.Android.Tools.AndroidSdk/Runners/EmulatorRunner.cs

@@ -68,6 +68,12 @@ public Process StartAvd (string avdName, bool coldBoot = false, string? addition
 		var psi = ProcessUtils.CreateProcessStartInfo (emulatorPath, args.ToArray ());
 		ConfigureEnvironment (psi);
 
+		// Redirect stdout/stderr so the emulator process doesn't inherit the
+		// caller's pipes. Without this, parent processes (e.g. VS Code spawn)
+		// never see the 'close' event because the emulator holds the pipes open.
+		psi.RedirectStandardOutput = true;
+		psi.RedirectStandardError = true;
+
 		var process = new Process { StartInfo = psi };
 		process.Start ();