lint: stop ignoring LIEF imports

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

ci/lint/04_install.sh

@@ -35,6 +35,7 @@ fi
 
 ${CI_RETRY_EXE} pip3 install codespell==2.2.1
 ${CI_RETRY_EXE} pip3 install flake8==5.0.4
+${CI_RETRY_EXE} pip3 install lief==0.13.1
 ${CI_RETRY_EXE} pip3 install mypy==0.971
 ${CI_RETRY_EXE} pip3 install pyzmq==24.0.1
 ${CI_RETRY_EXE} pip3 install vulture==2.6