Fix 7.9 ECM Tag Cloud - configuration upgrade needed

The ECM Tag Cloud browser configuration is incorrect for CMS 7.9 and needs upgrading.
When deploying against latest 7.9.1-SNAPSHOT release, the following error is logged:
ERROR [org.hippoecm.repository.impl.InitializationProcessorImpl] Error initializing content for jar:file:///home/ate/intellij/hippo-cms7/enterprise/bccm/next/embedded/target/embedded/ecm-tagging-4.07.01-SNAPSHOT.jar!/navigator.xml in '/hippo:configuration/hippo:frontend/cms/cms-browser' : javax.jcr.RepositoryException: No such node to merge with: /hippo:configuration/hippo:frontend/cms/cms-browser/{}navigator

For 7.9 the CMS navigator configuration node has moved from:
/hippo:configuration/hippo:frontend/cms/cms-browser/navigator
to:
/hippo:configuration/hippo:frontend/cms/cms-static/navigator