[ros] Update package.xml version number

package.xml

 <?xml version="1.0"?>
 <package>
   <name>talos_data</name>
-  <version>0.0.14</version>
+  <version>0.0.15</version>
   <description>The talos_data package</description>
 
   <maintainer email="ostasse@laas.fr">Olivier Stasse</maintainer>