chore(CHANGELOG): update to v0.30.0

Author: philippfromme

packages/zeebe-element-templates-json-schema/CHANGELOG.md

@@ -6,6 +6,11 @@ All notable changes to [@camunda/zeebe-element-templates-json-schema](https://gi
 
 ___Note:__ Yet to be released changes appear here._
 
+## 0.30.0
+
+* `FEAT`: support `zeebe:taskSchedule` ([#190](https://github.com/camunda/element-templates-json-schema/pull/190))
+* `FEAT`: disallow `bpmn:cancelRemainingInstances`, `bpmn:completionCondition` and `zeebe:activeElementsCollection` when `zeebe:taskDefinition` present ([#194](https://github.com/camunda/element-templates-json-schema/pull/194))
+
 ## 0.29.0
 
 * `FEAT`: support `zeebe:addHoc` ([#190](https://github.com/camunda/element-templates-json-schema/pull/190))