Update changelog for v0.30.0 with CI env changes: new K8s, Helm, Minikube

Author: armab

CHANGELOG.md

@@ -2,14 +2,14 @@
 
 ## In Development
 
-
 ## v0.30.0
 * Pin st2 version to `v3.3dev` as a new latest development version (#129)
 * Migrate from `py2` `Ubuntu Xenial` to `py3` `Ubuntu Bionic` as a base StackStorm OS (StackStorm/st2-dockerfiles#16, #129)
 * Switch from MongoDB `3.4` to `4.0` for the mongodb-ha Helm chart (#129)
 * Update `etcd-operator` 3rd party chart from `0.10.0` to latest `0.10.3` (#129)
 * Update `rabbitmq-ha` 3rd party chart from `1.36.4` to `1.44.1` (#129)
 * Update `mongodb-replicaset` 3rd party chart from `3.9.6` to `3.14.0` (#129)
+* Update CI infrastructure env, run tests on updated Helm `v2.16.7`, latest minikube `v1.10.1` and K8s `1.18` (#129)
 
 ## v0.27.0
 * Added support to toggle etcd-operator as a coordination backend (#127) (by @rrahman-nv)