lint: stop ignoring LIEF imports

Type stubs are now available as of 0.13.0.
See https://github.com/lief-project/LIEF/issues/650.

contrib/devtools/security-check.py

@@ -10,7 +10,7 @@ Otherwise the exit status will be 1 and it will log which executables failed whi
 import sys
 from typing import List
 
-import lief #type:ignore
+import lief
 
 def check_ELF_RELRO(binary) -> bool:
     '''

contrib/devtools/symbol-check.py

@@ -13,7 +13,7 @@ Example usage:
 import sys
 from typing import List, Dict
 
-import lief #type:ignore
+import lief
 
 # Debian 10 (Buster) EOL: 2024. https://wiki.debian.org/LTS
 #

contrib/devtools/test-security-check.py

@@ -5,7 +5,7 @@
 '''
 Test script for security-check.py
 '''
-import lief #type:ignore
+import lief
 import os
 import subprocess
 from typing import List