wip: investigate integration test flakiness #14769

Job	Run time
Build (core-build, core)	2m 10s
Build (editoast, editoast-test)	23s
Build (gateway-test, gateway-standalone, gateway-front)	10m 41s
Check dockerfiles	7s
Build (front-build, front-tests, front-devel, front-nginx)	16s
Build (osrdyne, osrdyne-test)	25s
Check generated railjson sync	21s
Check scripts	6s
Check commits	8s
Check final newline	9s
Check integration tests	1m 28s
Check osrd schema	42s
Check railjson generator	1m 56s
Check infra schema sync	19s
Check reuse compliance	12s
Check toml	6s
Check core	3m 59s
Check front rtk sync	1m 25s
Check editoast lints	9m 9s
Check editoast tests	6m 48s
Check front	2m 20s
Check editoast openapi	53s
Check gateway	3m 20s
Check osrdyne	3m 53s
Integration tests	57s
End to end tests	11m 35s
	1h 3m 48s

Provide feedback