meta: mark security-wg codeowner for deps folder

PR-URL: nodejs#51529
Reviewed-By: Richard Lau <rlau@redhat.com>
Reviewed-By: Yagiz Nizipli <yagiz.nizipli@sentry.io>
Reviewed-By: Michael Dawson <midawson@redhat.com>
Reviewed-By: Rafael Gonzaga <rafael.nunu@hotmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>

.github/CODEOWNERS

@@ -174,6 +174,7 @@
 /.github/workflows/tools.yml @nodejs/security-wg
 /.github/workflows/update-openssl.yml @nodejs/security-wg
 /.github/workflows/update-v8.yml @nodejs/security-wg @nodejs/v8-update
+/deps @nodejs/security-wg
 /tools/dep_updaters/* @nodejs/security-wg
 
 # Web Standards