Fix typed splat function parameters in Python.

Author: Bastiaan Marinus van de Weerd

Diff for: languages/tree-sitter-stack-graphs-python/src/stack-graphs.tsg

@@ -860,7 +860,7 @@ inherit .parent_module
 
 [
   (parameter/typed_parameter
-    . (_) @name) @param
+    . (identifier) @name) @param
   (parameter/list_splat_pattern
     (_) @name) @param
   (parameter/dictionary_splat_pattern

Diff for: languages/tree-sitter-stack-graphs-python/test/typed_splat_parameters.py

@@ -0,0 +1,10 @@
+from typing import Any
+
+def foo(*bar: Any):
+    #         ^defined: 1
+    pass
+
+def duux(**quux: Any):
+    #            ^defined: 1
+    pass
+