fix: invalid creation of Or instance with multiple BooleanExpressions

Author: jaimeferj

pyiceberg/expressions/__init__.py

@@ -328,6 +328,7 @@ def __new__(cls, left: BooleanExpression, right: BooleanExpression, *rest: Boole
             return left
         else:
             obj = super().__new__(cls)
+            super(Or, obj).__init__(left=left, right=right)
             return obj
 
     @field_serializer("left")