fix: ignore unimplemented test

src/emu.rs

@@ -934,6 +934,7 @@ mod test {
     }
 
     #[test]
+    #[ignore]
     fn opcode_set_sound_to_vx_works() {
         // let mut chip8: Chip8 = Default::default();
         // chip8.v[0x2] = 0x0F;