Fix type checker issues in parallel tests using cast instead of type ignore

Amp-Thread-ID: https://ampcode.com/threads/T-17f644e1-8fd3-4bb2-b2c6-bcb9119cfc98
Co-authored-by: Amp <[email protected]>

Author: vinitkumar

tests/test_parallel.py

@@ -1,5 +1,5 @@
 """Tests for parallel processing functionality."""
-from typing import TYPE_CHECKING
+from typing import TYPE_CHECKING, Any, Sequence, cast
 
 import pytest
 
@@ -72,13 +72,13 @@ def test_parallel_dict_invalid_input(self) -> None:
         invalid_data = ["not", "a", "dict"]
         with pytest.raises(TypeError):
             convert_dict_parallel(
-                invalid_data, [], "root", True, dicttoxml.default_item_func, False, True, False, workers=2  # type: ignore
+                cast(dict[str, Any], invalid_data), [], "root", True, dicttoxml.default_item_func, False, True, False, workers=2
             )
 
         # Passing None
         with pytest.raises(TypeError):
             convert_dict_parallel(
-                None, [], "root", True, dicttoxml.default_item_func, False, True, False, workers=2  # type: ignore
+                cast(dict[str, Any], None), [], "root", True, dicttoxml.default_item_func, False, True, False, workers=2
             )
 
     def test_parallel_list_invalid_input(self) -> None:
@@ -87,13 +87,13 @@ def test_parallel_list_invalid_input(self) -> None:
         invalid_data = {"not": "a list"}
         with pytest.raises(TypeError):
             convert_list_parallel(
-                invalid_data, [], "root", True, dicttoxml.default_item_func, False, True, False, workers=2, chunk_size=100  # type: ignore
+                cast(Sequence[Any], invalid_data), [], "root", True, dicttoxml.default_item_func, False, True, False, workers=2, chunk_size=100
             )
 
         # Passing None
         with pytest.raises(TypeError):
             convert_list_parallel(
-                None, [], "root", True, dicttoxml.default_item_func, False, True, False, workers=2, chunk_size=100  # type: ignore
+                cast(Sequence[Any], None), [], "root", True, dicttoxml.default_item_func, False, True, False, workers=2, chunk_size=100
             )
 
     def test_parallel_list_small(self) -> None: