Add missing dependency

Signed-off-by: Luca Della Vedova <[email protected]>

Author: luca-della-vedova

nexus_capabilities/package.xml

@@ -13,6 +13,7 @@
   <depend>nexus_common</depend>
   <depend>nexus_endpoints</depend>
   <depend>nexus_orchestrator_msgs</depend>
+  <depend>nlohmann-json-dev</depend>
   <depend>pluginlib</depend>
   <depend>rclcpp</depend>
   <depend>rclcpp_lifecycle</depend>