Changing /etc/ctafrontend_SSS_c.keytab and /etc/ctafrontend_SSS_s.keytab to /etc/cta/cta-cli.sss.keytab so that CI and preprod have now the same configuration files.

Keep in mind thatL
The user in the ctafrontend SSS key is the EOS instance name, the rest is BS. I tried to make it clear in the configuration files and names when a field is useless.
WFE scripts are now the same between preprod and CI and the ctafrontend
configuration file can move in the rpm.

Compiles without XRDSSI_DEBUG and removes --json option from scripts

Sets retrieve workflow in eos_wfe_scripts back to the old cta command
for now. Try to get simple test to work first.

This will be validated in the ssi branch and merged into master later.

This reverts commit 35a0cf48.

Also outputs stderr on success as well as failure

This commit should fail in system tests with a core dump on the
frontend.

when SSI is not used.

Preparing eos instance and eos workflows for preprod and SSI, so that we can test both SSI and non SSI workflows on the same cta instance, just in 2 different EOS folders.

cta.spec.in when we agree on content

XRD_TIMEOUTRESOLUTION=600   # increased from 15s