fix: upgrade helmet from 7.1.0 to 7.2.0 #11827

Job	Run time
👀 / Build Koski app	5m 3s
👀 / Lint Koski	1m 23s
👀 / Database documentation check	16s
👀 / tiedonsiirtoprotokollan_muutoshistoria.md check	15s
👀 / validaation_muutoshistoria.md check	14s
👀 / Frontend unit tests	41s
👀 / Valpas lint & unit	45s
👀 / Backend (api misc 1/2)	2m 51s
👀 / Backend (non-mock)	1m 49s
👀 / Backend (api misc 2/2)	5m 39s
👀 / Backend (api oppijavalidation)	6m 18s
👀 / Backend (other 1/4)	5m 30s
👀 / Backend (other 2/4)	9m 40s
👀 / Backend (other 3/4)	5m 56s
👀 / Backend (other 4/4)	7m 55s
👀 / Playwright 1/5	8m 8s
👀 / Frontend 1/12	7m 54s
👀 / Playwright 2/5	4m 4s
👀 / Frontend 2/12	2m 13s
👀 / Playwright 3/5	5m 38s
👀 / Valpas 1/6	12m 0s
👀 / Frontend 3/12	5m 45s
👀 / Playwright 4/5	4m 41s
👀 / Valpas 2/6	4m 58s
👀 / Playwright 5/5	4m 43s
👀 / Frontend 4/12	4m 29s
👀 / Valpas 3/6	5m 29s
👀 / Frontend 5/12	7m 10s
👀 / Valpas 4/6	7m 49s
👀 / Frontend 6/12	3m 24s
👀 / Valpas 5/6	4m 28s
👀 / Valpas 6/6	6m 20s
👀 / Frontend 7/12	3m 47s
👀 / Frontend 8/12	2m 57s
👀 / Frontend 9/12	2m 46s
👀 / Frontend 10/12	3m 19s
👀 / Frontend 11/12	3m 5s
👀 / Frontend 12/12	3m 2s
👀 / 👀OAuth2 / OAuth2 client	29s
👀 / 👀OAuth2 / OAuth2 server	16s
	2h 53m 9s

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