__Describe the Bug__
When saving a DMN diagram, the following error is logged:
Error: failed to parse document as <bpmn:Definitions>
at error (script.bundle.js:11987)
at script.bundle.js:12807
at new Promise (<anonymous>)
at Reader../node_modules/moddle-xml/dist/index.esm.js.Reader.fromXML (script.bundle.js:12792)
at BpmnModdle../node_modules/bpmn-moddle/dist/index.esm.js.BpmnModdle.fromXML (script.bundle.js:158)
at getRelationId (script.bundle.js:18262)
at CloudConnectPlugin.handleTabSaved (script.bundle.js:17400)
at s.<anonymous> (script.bundle.js:17662)
at s.emit (events.js:146)
at ba.emit (App.js:724)
at ba.tabSaved (App.js:912)
at ba.saveTab (App.js:1353)
at async ba.triggerAction (App.js:2244)
at async file:/home/maxtru/Dokumente/99_tmp/4.8_IntegrationTest/camunda-modeler-4.8.0-rc.0-linux-x64/resources/app.asar/public/bundle.js:65
__Steps to Reproduce__

__Expected Behavior__
No error is logged
__Environment__
Note: this issue was present in 4.7.0. as well
That's the same as (probably): https://github.com/camunda/cloud-connect-modeler-plugin/issues/38
Solution: release the fix we already provided: https://github.com/camunda/cloud-connect-modeler-plugin/issues/38#issuecomment-828424505
Can be closed as soon as we have done: https://github.com/camunda/cloud-connect-modeler-plugin/issues/40