Start up error when waypoint's name is pure numbers

[mbb1234567890]

Bug report

Start up rmf_demo error, because of waypoint's name has pure numbers

Required information:

• Operating system and version:
  • Ubuntu 20.04
• OpenRMF installation type:
  • From source
• OpenRMF version or commit hash
  • c5910c1 Luca Della Vedova luca@openrobotics.org on 22-12-6 at 下午2:35
  • committed by GitHub noreply@github.com     Unverified GPG signature
• ROS distribution and version:
  • rolling
• ROS installation type:
  • binaries
• Package or library, if applicable:

Description of the bug

[fleet_adapter-14] 2023-04-10 17:37:24.539 line526 INFO config_path=/home/bing/rmf_galactic/install/rmf_demos/share/rmf_demos/config/fangshan/harixRobot_config.yaml, nav_graph=/home/bing/rmf_galactic/install/rmf_demos_maps/share/rmf_demos_maps/maps/fangshan/nav_graphs/0.yaml, user_sime_time=False, graph_build_file_path=/home/bing/rmf_galactic/install/rmf_demos_maps/share/rmf_demos_maps/fangshan/fangshan.building.yaml
[building_map_server-3] [INFO] [1681119444.562163742] [building_map_server]: loading map path: /home/bing/rmf_galactic/install/rmf_demos_maps/share/rmf_demos_maps/fangshan/fangshan.building.yaml
[building_map_server-3] [INFO] [1681119444.570400415] [building_map_server]: opening: /home/bing/rmf_galactic/install/rmf_demos_maps/share/rmf_demos_maps/fangshan/fangshan.png
[building_map_server-3] [INFO] [1681119444.571744718] [building_map_server]: read 15945 byte image
[building_map_server-3] Traceback (most recent call last):
[building_map_server-3] File "/home/bing/rmf_galactic/install/rmf_building_map_tools/lib/rmf_building_map_tools/building_map_server", line 11, in
[building_map_server-3] load_entry_point('rmf-building-map-tools==1.6.0', 'console_scripts', 'building_map_server')()
[building_map_server-3] File "/home/bing/rmf_galactic/install/rmf_building_map_tools/lib/python3.8/site-packages/building_map_server/building_map_server.py", line 339, in main
[building_map_server-3] n = BuildingMapServer(map_path)
[building_map_server-3] File "/home/bing/rmf_galactic/install/rmf_building_map_tools/lib/python3.8/site-packages/building_map_server/building_map_server.py", line 49, in init
[building_map_server-3] self.load_building_yaml(map_path)
[building_map_server-3] File "/home/bing/rmf_galactic/install/rmf_building_map_tools/lib/python3.8/site-packages/building_map_server/building_map_server.py", line 87, in load_building_yaml
[building_map_server-3] self.create_map_msg(building)
[building_map_server-3] File "/home/bing/rmf_galactic/install/rmf_building_map_tools/lib/python3.8/site-packages/building_map_server/building_map_server.py", line 105, in create_map_msg
[building_map_server-3] self.map_msg.levels.append(self.level_msg(level_data))
[building_map_server-3] File "/home/bing/rmf_galactic/install/rmf_building_map_tools/lib/python3.8/site-packages/building_map_server/building_map_server.py", line 251, in level_msg
[building_map_server-3] gn.name = v[2]['name']
[building_map_server-3] File "/home/bing/rmf_galactic/install/rmf_building_map_msgs/lib/python3.8/site-packages/rmf_building_map_msgs/msg/_graph_node.py", line 173, in name
[building_map_server-3] assert
[building_map_server-3] AssertionError: The 'name' field must be of type 'str'

Steps to reproduce the bug

Expected behavior

Actual behavior

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Additional information