fix: Handle ComplexFeastType to None comparison (#3876)

Signed-off-by: Aliaksandr Sasnouskikh <jahstreetlove@gmail.com>

sdk/python/feast/types.py

@@ -50,7 +50,10 @@ def __hash__(self):
         return hash(self.to_value_type().value)
 
     def __eq__(self, other):
-        return self.to_value_type() == other.to_value_type()
+        if isinstance(other, ComplexFeastType):
+            return self.to_value_type() == other.to_value_type()
+        else:
+            return False
 
 
 class PrimitiveFeastType(Enum):