editoast: bump tokio from 1.39.2 to 1.39.3 in /editoast #9943

Job	Run time
build (core-build, core)	26s
check_generated_railjson_sync	19s
check_railjson_generator	1m 53s
build (editoast, editoast-test)	11m 34s
build (gateway-test, gateway-standalone, gateway-front)	1m 46s
check_commits	5s
build (front-build, front-tests, front-devel, front-nginx)	17s
check_integration_tests	1m 39s
build (osrdyne, osrdyne-test)	25s
Check final newline	7s
check_osrd_schema	51s
check_infra_schema_sync	20s
check_toml	14s
check_editoast_lints	5m 33s
check_editoast_tests	4m 44s
check_editoast_openapi	1m 21s
check_core	4m 10s
check_front	2m 45s
check_front_rtk_sync	1m 46s
check_gateway	2m 8s
integration_tests	5m 45s
check_osrdyne	2m 38s
	50m 46s

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