run-make-check.sh: add jq which is not generally available

jq is useful to parse json from the command line. It is however not
packaged for all supported distributions (precise has it in the backport
repository which is usually not active) and cannot be conveniently added
to debian/control because it targets all distributions and has no
conditionals.

Signed-off-by: Loic Dachary <ldachary@redhat.com>