fix(ext/http): make Deno.ServeDefaultExport generic

[iuioiua]

Deno.ServeDefaultExport now reflects that deno serve supports Unix and VSOCK sockets under the hood.

deno/ext/http/00_serve.ts

Lines 1130 to 1140 in 79a9868

	switch (transport) {
	case "tcp":
	target = `http://${formatHostName(hostname)}:${port}/`;
	break;
	case "unix":
	target = path;
	break;
	case "vsock":
	target = `vsock:${cid}:${port}`;
	break;
	}

Blocked by #29449