build

front: use Date instead of string in OsrdConfState.startTime #16542

Job	Run time
Check dockerfiles	9s
Build (core-build, core)	13s
Build (editoast, editoast-test)	17s
Check generated railjson sync	22s
Check scripts	5s
Build (gateway-test, gateway-standalone, gateway-front)	2m 34s
Check commits	7s
Build (front-build, front-tests, front-devel, front-nginx)	2m 10s
Check railjson generator	1m 43s
Build (osrdyne, osrdyne-test)	13s
Check final newline	7s
Check integration tests	1m 36s
Check osrd schema	43s
Check infra schema sync	24s
Check reuse compliance	11s
Check toml	5s
Check editoast tests	6m 41s
Check front rtk sync	1m 5s
Check gateway	3m 26s
Check editoast lints	9m 22s
Check core	4m 1s
Check editoast openapi	34s
Check front	3m 16s
Check osrdyne	3m 42s
End to end tests	11m 11s
Integration tests	1m 9s
	55m 26s

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