fix tests and plotting

Author: mroeschke

pandas/plotting/_matplotlib/style.py

@@ -273,7 +273,7 @@ def _random_color(column: int) -> list[float]:
     """Get a random color represented as a list of length 3"""
     # GH17525 use common._random_state to avoid resetting the seed
     rs = com.random_state(column)
-    return rs.rand(3).tolist()
+    return rs.rand(3).tolist()  # type: ignore[return-value]
 
 
 def _is_single_string_color(color: Color) -> bool:

pandas/tests/dtypes/test_missing.py

@@ -769,8 +769,8 @@ def test_empty_like(self):
         np.datetime64("NaT"),
         np.timedelta64("NaT"),
     ]
-    + [np.datetime64("NaT", unit) for unit in m8_units]
-    + [np.timedelta64("NaT", unit) for unit in m8_units]
+    + [np.datetime64("NaT", unit) for unit in m8_units]  # type: ignore[call-overload]
+    + [np.timedelta64("NaT", unit) for unit in m8_units]  # type: ignore[call-overload]
 )
 
 inf_vals = [