replace to_unsigned_long with int

gef.py

@@ -3841,7 +3841,7 @@ def parse_address(address: str) -> int:
     """Parse an address and return it as an Integer."""
     if is_hex(address):
         return int(address, 16)
-    return to_unsigned_long(gdb.parse_and_eval(address))
+    return int(gdb.parse_and_eval(address))
 
 
 def is_in_x86_kernel(address: int) -> bool: