editoast: provide details when pathfinding failed #13317

Job	Run time
build (core-build, core)	2m 9s
build (editoast, editoast-test)	7m 53s
check_generated_railjson_sync	24s
check_railjson_generator	1m 58s
build (gateway-test, gateway-standalone, gateway-front)	2m 40s
build (front-build, front-tests, front-devel, front-nginx)	2m 37s
build (osrdyne, osrdyne-test)	17s
check_commits	6s
check_integration_tests	1m 19s
check_osrd_schema	38s
Check final newline	8s
check_infra_schema_sync	14s
check_reuse_compliance	9s
check_toml	6s
check_core	4m 3s
check_editoast_openapi	1m 4s
check_editoast_lints	9m 0s
check_editoast_tests	6m 33s
check_front_rtk_sync	1m 38s
check_front	2m 35s
check_gateway	3m 20s
check_osrdyne	3m 20s
integration_tests	9m 53s
	1h 2m 4s

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