package.xml: depend on gz-tools (#593)

Signed-off-by: Steve Peters <scpeters@intrinsic.ai>

Author: scpeters

package.xml

@@ -12,7 +12,7 @@
   <build_depend>gz-cmake</build_depend>
 
   <depend>gz-math</depend>
-  <depend>gz-tools2</depend>
+  <depend>gz-tools</depend>
   <depend>protobuf-dev</depend>
   <depend>python3-protobuf</depend>
   <depend>python3</depend>