changed range for lidar to make it not detect itself

stretch_gazebo/urdf/stretch_gazebo.urdf.xacro

@@ -258,7 +258,7 @@
             </horizontal>
           </scan>
           <range>
-            <min>0.08</min>
+            <min>0.2</min>
             <max>12.0</max>
             <resolution>0.01</resolution>
           </range>
@@ -294,7 +294,7 @@
             </horizontal>
           </scan>
           <range>
-            <min>0.08</min>
+            <min>0.2</min>
             <max>12.0</max>
             <resolution>0.01</resolution>
           </range>