web: update to ESLint 9 (#10812) #74

Job	Run time
lint (bandit)	2m 2s
lint (black)	1m 39s
lint (codespell)	1m 34s
lint (pending-migrations)	1m 49s
test-e2e (proxy)	4m 27s
lint (ruff)	1m 46s
test-e2e (oauth)	8m 11s
test-e2e (oauth-oidc)	5m 44s
test-integration	5m 7s
test-e2e (saml)	6m 21s
test-e2e (ldap)	8m 44s
test-migrations	3m 3s
test-e2e (radius)	4m 28s
test-e2e (scim)	4m 50s
test-migrations-from-stable - PostgreSQL 15-alpine	16m 33s
test-e2e (flows)	6m 4s
test-unittest - PostgreSQL 15-alpine	15m 31s
test-migrations-from-stable - PostgreSQL 16-alpine	16m 13s
test-unittest - PostgreSQL 16-alpine	15m 0s
ci-core-mark	1s
build (amd64)	7m 23s
build (arm64)	17m 5s
pr-comment	0s
	2h 33m 35s

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