Disable Heat in ci-aio env

This should free up some memory, allowing us to use a smaller flavor.

Author: markgoddard

etc/kayobe/environments/ci-aio/stackhpc-ci.yml

@@ -5,6 +5,9 @@
 # Docker namespace to use for Kolla images. Default is 'kolla'.
 kolla_docker_namespace: stackhpc-dev
 
+# Disable some services to reduce memory footprint.
+kolla_enable_heat: false
+
 ###############################################################################
 # Network configuration.