Use CONFIG_WERROR to also fail on warnings emitted by resolve_btfids.
Allow the CI bots to prevent the introduction of new warnings.
This series currently depends on
"[PATCH] bpf, lsm: Fix getlsmprop hooks BTF IDs" [0]
[0] https://lore.kernel.org/lkml/20241123-bpf_lsm_task_getsecid_obj-v1-1-0d0f94649e05@xxxxxxxxxxxxxx/