ignore Debian-specific error around urdfdom_headers

Without the patch:

$ catkin_lint rviz_marker_tools/
rviz_marker_tools: package.xml: error: missing build_depend on 'urdfdom_headers'

requires catkin_lint 1.6.24 for successful error suppression.

rviz_marker_tools/CMakeLists.txt

@@ -10,6 +10,7 @@ find_package(catkin REQUIRED COMPONENTS
 )
 find_package(Eigen3 REQUIRED)
 
+#catkin_lint: ignore missing_depend[pkg=urdfdom_headers]
 find_package(urdfdom_headers REQUIRED)
 
 catkin_package(