GH-69988
--------
Validate extension JSON: API was removed: classes/NavigationAgent2D/methods/get_time_horizon
Validate extension JSON: API was removed: classes/NavigationAgent2D/methods/set_time_horizon
Validate extension JSON: API was removed: classes/NavigationAgent2D/properties/time_horizon
Validate extension JSON: API was removed: classes/NavigationAgent3D/methods/get_agent_height_offset
Validate extension JSON: API was removed: classes/NavigationAgent3D/methods/get_ignore_y
Validate extension JSON: API was removed: classes/NavigationAgent3D/methods/get_time_horizon
Validate extension JSON: API was removed: classes/NavigationAgent3D/methods/set_agent_height_offset
Validate extension JSON: API was removed: classes/NavigationAgent3D/methods/set_ignore_y
Validate extension JSON: API was removed: classes/NavigationAgent3D/methods/set_time_horizon
Validate extension JSON: API was removed: classes/NavigationAgent3D/properties/agent_height_offset
Validate extension JSON: API was removed: classes/NavigationAgent3D/properties/ignore_y
Validate extension JSON: API was removed: classes/NavigationAgent3D/properties/time_horizon
Validate extension JSON: API was removed: classes/NavigationObstacle2D/methods/is_radius_estimated
Validate extension JSON: API was removed: classes/NavigationObstacle2D/methods/set_estimate_radius
Validate extension JSON: API was removed: classes/NavigationObstacle2D/properties/estimate_radius
Validate extension JSON: API was removed: classes/NavigationObstacle3D/methods/is_radius_estimated
Validate extension JSON: API was removed: classes/NavigationObstacle3D/methods/set_estimate_radius
Validate extension JSON: API was removed: classes/NavigationObstacle3D/properties/estimate_radius
Validate extension JSON: API was removed: classes/NavigationServer2D/methods/agent_set_callback
Validate extension JSON: API was removed: classes/NavigationServer2D/methods/agent_set_target_velocity
Validate extension JSON: API was removed: classes/NavigationServer2D/methods/agent_set_time_horizon
Validate extension JSON: API was removed: classes/NavigationServer3D/methods/agent_set_callback
Validate extension JSON: API was removed: classes/NavigationServer3D/methods/agent_set_target_velocity
Validate extension JSON: API was removed: classes/NavigationServer3D/methods/agent_set_time_horizon

Navigation avoidance was reworked entirely.
Migration: TODO
