Replace deprecated inspect.getargspec

inspect.getargspec was deprecated since Python 3.0 and removed in Python 3.11
inspect.getfullargspec is its replacement

src/main/python/RemoteSwingLibrary.py

@@ -630,7 +630,7 @@ def get_keyword_arguments(self, name):
         return swinglibrary.keyword_arguments[name]
 
     def _get_args(self, method_name):
-        spec = inspect.getargspec(getattr(self, method_name))
+        spec = inspect.getfullargspec(getattr(self, method_name))
         args = spec[0][1:]
         if spec[3]:
             for i, item in enumerate(reversed(spec[3])):