core: stdcm: increase max length to test for engineering allowances #17713

Job	Run time
Check dockerfiles	14s
Check generated railjson sync	33s
Check railjson generator	1m 47s
Build (core-build, core)	2m 13s
Check scripts	6s
Build (editoast, editoast-test)	27s
Build (gateway-test, gateway-standalone, gateway-front)	54s
Check commits	8s
Build (front-build, front-tests, front-devel, front-nginx)	19s
Build (osrdyne, osrdyne-test)	14s
Check final newline	9s
Check infra schema sync	15s
Check integration tests	1m 23s
Check osrd schema	45s
Check toml	4s
Check reuse compliance	12s
Check editoast lints	8m 30s
Check core	4m 4s
Check editoast tests	7m 20s
Check front rtk sync	1m 18s
Check editoast openapi	42s
Check gateway	3m 22s
Check front	3m 19s
Check osrdyne	3m 38s
End to end tests	18m 55s
Integration tests	1m 11s
	1h 2m 2s

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