rpm: Fix build in centos container
rpm: Fix build in centos container

mock will call /usr/sbin/mock, but we need /usr/bin/mock.

Signed-off-by: Pekka Enberg <add4fcd06328a394f0ad91feda7ee057316dc5ed@cloudius-systems.com>

scylladb/scylla-jmx,scylladb/scylla-jmx,scylladb/scylla-jmx