bumping melodic-devel for bloom release

Author: SteveMacenski

package.xml

@@ -1,6 +1,6 @@
 <package>
     <name>nonpersistent_voxel_layer</name>
-    <version>1.1.3</version>
+    <version>1.2.3</version>
     <description>include
         This package provides an implementation of a 3D costmap that takes in sensor
         data from the world, builds a 3D occupancy grid of the data for only one iteration.