chore(CHANGELOG): update to v5.33.0

Author: abdul99ahad

CHANGELOG.md

@@ -6,6 +6,8 @@ All notable changes to [bpmn-js-properties-panel](https://github.com/bpmn-io/bpm
 
 ___Note:__ Yet to be released changes appear here._
 
+## 5.33.0
+
 * `FEAT`: trim trailing whitespaces from all input fields except expressions ([bpmn-io/properties-panel#309](https://github.com/bpmn-io/properties-panel/issues/309))
 * `DEPS`: update to `@bpmn-io/[email protected]`