Update EOS version on versionlock.list to 4.8.105/5.1.29

As mentioned in https://gitlab.cern.ch/cta/operations/-/issues/1121, we had to update our EOS-CTA instances to version 4.8.103 in order to fix a bug triggered by the deletion of 0-length files.

These changes needs to be included into our CTA CI - to have proper testing coverage - by updating the EOS version on versionlock.list file.