v0.40.0

• Switch st2 version to v3.4dev as a new latest development version (#157)
• Disable Enterprise testing in CI (#157)
• Change pullPolicy to "IfNotPresent", as Docker-Hub Ratelimits now (#159) (by @moonrail)
• Update rabbitmq-ha 3rd party chart from 1.44.1 to 1.46.1 (#158) (by @moonrail)
• Enable rabbitmqErlangCookie for rabbitmq-ha by default, to ensure cluster-redeployments do not fail (#158) (by @moonrail)
• Add forceBoot for rabbitmq-ha by default, to ensure cluster-redeployments do not fail due to unclean exits (#158) (by @moonrail)
• Add option to define pull secret for st2 images (#162) (by @moonrail)