Update nsss.py

[haf]

This stops this error from happening:

 Traceback (most recent call last):
   File ".pyenv/versions/3.10.7/lib/python3.10/runpy.py", line 196, in _run_module_as_main
     return _run_code(code, main_globals, None,
   File ".pyenv/versions/3.10.7/lib/python3.10/runpy.py", line 86, in _run_code
     exec(code, run_globals)
   File "thea/tts.py", line 13, in <module>
     main()
   File "thea/tts.py", line 7, in main
     engine = rlvoice.init()
   File ".venv/lib/python3.10/site-packages/rlvoice/__init__.py", line 22, in init
     eng = Engine(driverName, debug)
   File ".venv/lib/python3.10/site-packages/rlvoice/engine.py", line 30, in __init__
     self.proxy = driver.DriverProxy(weakref.proxy(self), driverName, debug)
   File ".venv/lib/python3.10/site-packages/rlvoice/driver.py", line 49, in __init__
     self._module = importlib.import_module(name)
   File ".pyenv/versions/3.10.7/lib/python3.10/importlib/__init__.py", line 126, in import_module
     return _bootstrap._gcd_import(name[level:], package, level)
   File "<frozen importlib._bootstrap>", line 1050, in _gcd_import
   File "<frozen importlib._bootstrap>", line 1027, in _find_and_load
   File "<frozen importlib._bootstrap>", line 1006, in _find_and_load_unlocked
   File "<frozen importlib._bootstrap>", line 688, in _load_unlocked
   File "<frozen importlib._bootstrap_external>", line 883, in exec_module
   File "<frozen importlib._bootstrap>", line 241, in _call_with_frames_removed
   File ".venv/lib/python3.10/site-packages/rlvoice/drivers/nsss.py", line 13, in <module>
     class NSSpeechDriver(NSObject):
   File ".venv/lib/python3.10/site-packages/rlvoice/drivers/nsss.py", line 14, in NSSpeechDriver
     @objc.python_method
 NameError: name 'objc' is not defined. Did you mean: 'object'?

[Akul2010]

Thank you! I'm sorry I wasn't able to look into it, I've been a little busy.