current preflight tests are targetting eos/xrootd regressions

Resolve "CTA CI crashing for some k8 configurations": CTA CI can now run with hostNetwork configuration for ctaeos pod.

Remove catalogue version 5.0 from CTA and move backwards compatible changes to catalogue version 4.6

Updating ceph repository as ceph only keeps the latest version of octopus in https://download.ceph.com/rpm-octopus/el7/x86_64/

Add the UseEncryption drive config with a default value of yes.

A tape mount is stoped if the external encryption script is empty and UseEncryption is yes

Activity Mount Rules associate a Mount Policy to an activity regex.

When recalling a file, the users can specify an activity (i.e. by using
filepath?activity=x). If specified, this activity will be used to select
a matching activity mount rule, if one exists. If more than one Activity
Mount Rule matches the activity, the one with highest retrieve priority
will be chosen.

Acitivity Mount Rules take precedence over Requester Mount Rules.