build-galaxy-release: Real cleanup of ipabackup_get_backup_dir.py link

plugins/modules/ipabackup_* needs to be cleaned up not
plugins/action/ipabackup_*

utils/build-galaxy-release.sh

@@ -84,7 +84,7 @@ rm plugins/module_utils/ansible_ipa_*
 rm plugins/modules/ipaserver_*
 rm plugins/modules/ipareplica_*
 rm plugins/modules/ipaclient_*
+rm plugins/modules/ipabackup_*
 rm plugins/action/ipaclient_*
-rm plugins/action/ipabackup_*
 rmdir plugins/action
 git reset --hard