Dont add nova-compute to charm tests if not already there

We were adding nova-compute if it didnt exist at all when
setting constraints which was unintentional. This patch
stops that behaviour.

openstack/tools/charmed_openstack_functest_runner.sh

@@ -212,6 +212,8 @@ if $MODIFY_BUNDLE_CONSTRAINTS; then
     (
     [[ -d src ]] && cd src
     for f in tests/bundles/*.yaml; do
+        # Dont do this if the test does not have nova-compute
+        grep -q "nova-compute:" $f || continue
         if [[ $(yq '.applications' $f) = null ]]; then
             yq -i '.services.nova-compute.constraints="root-disk=80G mem=8G"' $f
         else