Fix bug with edge-playback not removing temp files

* `tmp.close()` even with `delete=True` will cause `edge-playback` to
  not delete because the file will be recreated by `edge-tts`
* bump edge-tts version

src/edge_tts/version.py

@@ -1,4 +1,4 @@
 """Edge TTS version information."""
 
-__version__ = "6.1.0"
+__version__ = "6.1.1"
 __version_info__ = tuple(int(num) for num in __version__.split("."))