[Virtio-fs] [virtiofsd] MR opened: Fix daemon startup with new glibc versions (>=2.35)

[virtiofs-bot at sinrega.org]

When running on systems that ship with the most recent release of glibc
(2.35), we noticed that virtiofsd would fail when running as a regular
user. This was down to one of viriofsd's child processes being killed by
seccomp for attempting an rseq. So, add rseq to allowed syscalls, and
bump libc bindings to the version that introduces SYS_rseq.

Signed-off-by: Anca Iordache <anca.iordache at docker.com>
Signed-off-by: Frédéric Dalleau <frederic.dalleau at docker.com>
Signed-off-by: Piotr Stankiewicz <piotr.stankiewicz at docker.com>
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https://gitlab.com/virtio-fs/virtiofsd/-/merge_requests/107