[Fix] Update for Docker Images

Due to an update of the docker images minor changes are required for the CI

pystencils/typing/utilities.py

 from collections import defaultdict
 from functools import partial
+import sys
 from typing import Tuple, Union, Sequence
 
 import numpy as np
@@ -191,14 +192,9 @@ if int(sympy_version[0]) * 100 + int(sympy_version[1]) >= 109:
     # __setstate__ would bypass the contructor, so we remove it
     sp.Number.__getstate__ = sp.Basic.__getstate__
     del sp.Basic.__getstate__
-
-    class FunctorWithStoredKwargs:
-        def __init__(self, func, **kwargs):
-            self.func = func
-            self.kwargs = kwargs
-
-        def __call__(self, *args):
-            return self.func(*args, **self.kwargs)
+    if sys.version_info.major * 100 + sys.version_info.minor >= 311:
+        del sp.Basic.__setstate__
+    del sp.Symbol.__setstate__
 
     # __reduce_ex__ would strip kwargs, so we override it
     def basic_reduce_ex(self, protocol):
@@ -210,7 +206,7 @@ if int(sympy_version[0]) * 100 + int(sympy_version[1]) >= 109:
             state = self.__getstate__()
         else:
             state = None
-        return FunctorWithStoredKwargs(type(self), **kwargs), args, state
+        return partial(type(self), **kwargs), args, state
 
     sp.Number.__reduce_ex__ = sp.Basic.__reduce_ex__
     sp.Basic.__reduce_ex__ = basic_reduce_ex