libcli/security/tests: gunzip the oversized-acls test vectors

libcli/security/tests: gunzip the oversized-acls test vectors

These are just as readable with `less` as they were with `zless`.

This file has been slightly manually edited to add line-breaks. There
is not an easy setting in Python's json module to get good formatting.

Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Autobuild-User(master): Andrew Bartlett <abartlet@samba.org>
Autobuild-Date(master): Mon Nov 27 02:10:12 UTC 2023 on atb-devel-224