[web] modify codegen script to generate files for identity_authenticated.proto
Summary:
we need the auth client available on web as well, so we should generate the relevant structs and client code
Depends on D9792
Test Plan: ran the script
Reviewers: ashoat
Reviewed By: ashoat
Subscribers: tomek, wyilio
Differential Revision: https://phab.comm.dev/D9793