testprogs: Add net offlinejoin composeodj tests

testprogs: Add net offlinejoin composeodj tests

BUG: https://bugzilla.samba.org/show_bug.cgi?id=13577

Signed-off-by: Samuel Cabrero <scabrero@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Autobuild-User(master): Andrew Bartlett <abartlet@samba.org>
Autobuild-Date(master): Tue Sep  5 22:11:46 UTC 2023 on atb-devel-224

(cherry picked from commit f3c632e74ba100b455eeac66e8914b11d1d9b0a0)

Autobuild-User(v4-18-test): Jule Anger <janger@samba.org>
Autobuild-Date(v4-18-test): Wed Nov 29 15:55:45 UTC 2023 on atb-devel-224