cql3: statement_restrictions: adjust call to std::vector deduction guide
cql3: statement_restrictions: adjust call to std::vector deduction guide

gcc 11 has a hard time parsing a deduction guide use with
braced initializer. The bug [1] was already fixed in gcc 12,
and I've requested a backport, but reduce friction meanwhile
by switching to a form that works in gcc 11.

[1] https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89062

scylladb/scylla,scylladb/scylla,scylladb/scylla,scylladb/scylla