[INTERNAL] npm: Update grunt-openui5 to v0.13.0
[INTERNAL] npm: Update grunt-openui5 to v0.13.0

Change-Id: Ide6a5dbd0c53ab6b1bf576da1d776bdadf08b015

SAP/openui5,SAP/openui5,SAP/openui5,cschuff/openui5,cschuff/openui5,SAP/openui5,cschuff/openui5