fix(deps): update dependency helmet to v8 #2733

Job	Run time
builds / Builds (backend)	1m 46s
builds / Builds (database-migrations)	37s
builds / Builds (admin-frontend)	1m 19s
builds / Builds (frontend)	1m 13s
builds / Builds (doc-gen-service)	1m 47s
builds / Builds (backend-external)	59s
builds / Builds (maintenance)	23s
Check Quota / Check Quota	1m 23s
Deploys / Helm	2m 24s
E2E-Admin / Tests (Google Chrome)	3m 32s
Integration / Backend-external	18s
E2E / Tests (Google Chrome)	3m 2s
E2E / Tests (firefox)	2m 25s
E2E / Tests (safari)	2m 43s
E2E / Tests (Microsoft Edge)	2m 49s
	26m 40s

Provide feedback