meta: update CODEOWNERS for FFI

Signed-off-by: Paolo Insogna <paolo@cowtech.it>
PR-URL: #62853
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Chengzhong Wu <legendecas@gmail.com>
Reviewed-By: Richard Lau <richard.lau@ibm.com>
Reviewed-By: Marco Ippolito <marcoippolito54@gmail.com>
Reviewed-By: Rafael Gonzaga <rafael.nunu@hotmail.com>

Author: ShogunPanda

.github/CODEOWNERS

@@ -243,3 +243,11 @@
 # dev container
 /.devcontainer/* @nodejs/devcontainer
 /doc/contributing/using-devcontainer.md @nodejs/devcontainer
+
+# FFI
+/deps/libffi/ @nodejs/ffi
+/doc/api/ffi.md @nodejs/ffi
+/lib/ffi.js @nodejs/ffi
+/src/ffi/ @nodejs/ffi
+/src/node_ffi.* @nodejs/ffi
+/test/ffi/ @nodejs/ffi