testing: Use testing.ready property for project HEAD test
testing: Use testing.ready property for project HEAD test

The previous conditions were broken: tests don't run after git head
moves. Adpot the "testing.ready" approach here too to fix it.

Signed-off-by: Fam Zheng <df9fd617995bad07eac70e27aa3fe5069270e3bd@redhat.com>
Message-Id: <20180307084609.8515-6-df9fd617995bad07eac70e27aa3fe5069270e3bd@redhat.com>
Signed-off-by: Fam Zheng <df9fd617995bad07eac70e27aa3fe5069270e3bd@redhat.com>

patchew-project/patchew,famz/patchew,famz/patchew,famz/patchew,patchew-project/patchew,patchew-project/patchew,patchew-project/patchew,famz/patchew