deps: add back typing-extensions

Author: MilesCranmer

pysr/expression_specs.py

@@ -5,7 +5,7 @@
 try:
     from typing import TypeAlias
 except ImportError:
-    TypeAlias = NewType("TypeAlias", Any)
+    from typing_extensions import TypeAlias
 
 import numpy as np
 import pandas as pd

requirements.txt

@@ -5,3 +5,4 @@ scikit_learn>=1.0.0,<2.0.0
 juliacall==0.9.23
 click>=7.0.0,<9.0.0
 setuptools>=50.0.0
+typing-extensions>=4.0.0,<5.0.0