tests: improve spate launcher on Blue Gene/Q

Link: https://github.com/GeneAssembly/biosal/issues/690
Signed-off-by: Sébastien Boisvert <boisvert@anl.gov>
tests: copy the correct job template on Blue Gene/Q

Signed-off-by: Sébastien Boisvert <boisvert@anl.gov>