syscalls: Fix to add sys_uretprobe to syscall.tbl

Add sys_uretprobe entry to scripts/syscall.tbl as same as
arch/x86/entry/syscalls/syscall_64.tbl.

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Closes: https://lore.kernel.org/all/20240719102824.1e086a40@canb.auug.org.au/
Fixes: 63ded110

 ("uprobe: Change uretprobe syscall scope and number")
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>