Fix checksec commandline output after Python 3.12 fixes

This reverts #2346 which apparently didn't do what was expected. The logger has to be initialized for the checksec output to show up, so some other file imported * from pwn before too.
With the double registration of subparsers removed in f28d3eb this didn't happen anymore making checksec print nothing.

pwnlib/commandline/checksec.py

@@ -4,7 +4,7 @@
 import argparse
 import sys
 
-from pwnlib.elf import ELF
+from pwn import *
 from pwnlib.commandline import common
 
 parser = common.parser_commands.add_parser(