cta-build: Add nims to known_hosts and enable strict host key checking

6 jobs for upload_rpms in 46 seconds (queued for 5 seconds)
Name Stage Failure
cta_srpm Build:Srpm
$ mkdir build_srpm
$ cd build_srpm
$ cmake -DPackageOnly:Bool=true -DVCS_VERSION=${CTA_BUILD_ID} ..
CMake Error: The source directory "/builds/4iodoRfs/0/dcache/pipelines" does not appear to contain CMakeLists.txt.
Specify --help for usage, or press the help button on the CMake GUI.

Cleaning up project directory and file based variables

ERROR: Job failed: command terminated with exit code 1