Run CTA Kubernetes with Eos5 using CTA RPMs

Currently the scripts to run the instances of kubernetes for CTA doesn´t allow to run using EOS5.

I've been trying to force Eos5, but ctafrontend dies with this log:

++++++ ssi initialization started.
=====> ssi.svclib libXrdSsiCta.so 
Config Configuring standalone server.
Plugin No such file or directory loading svclib libXrdSsiCta.so
------ ssi initialization failed.
230510 10:00:49 206 XrootdConfig: Unable to load file system via libXrdSsi.so
230510 10:00:49 206 XrootdConfig: Unable to load base file system using libXrdSsi.so
------ xroot protocol initialization failed.
230510 10:00:49 206 XrdProtocol: Protocol xroot could not be loaded
------ xrootd cta@ctafrontend.stress.svc.cluster.local:10955 initialization failed.
230510 10:05:58 216 Starting on Linux 3.10.0-1160.88.1.el7.x86_64

Solution: Not use buildtree and to follow the same process as the gitlab-ci using the CTA rpms.