Fix/missing pybind tools dep (#3)

* adding missing py_binding_tools dependency to package.xml

* Adding mypy dep

* adding mypy dependency in package.xml

Author: eaa3

package.xml

@@ -10,6 +10,8 @@
   <buildtool_depend>ament_cmake</buildtool_depend>
 
   <depend>behaviortree_cpp</depend>
+  <depend>py_binding_tools</depend>
+  <depend>python3-mypy</depend>
   <depend>fmt</depend>
 
   <export>