website/integrations: gitlab: add oidc guide (#9740) #45

Job	Run time
lint (bandit)	2m 39s
test-e2e (proxy)	6m 11s
lint (black)	3m 47s
test-e2e (oauth)	9m 0s
lint (codespell)	2m 30s
test-e2e (oauth-oidc)	7m 35s
lint (pending-migrations)	2m 3s
test-e2e (saml)	7m 55s
lint (ruff)	1m 44s
test-e2e (ldap)	10m 52s
test-e2e (radius)	6m 6s
test-e2e (scim)	5m 23s
test-integration	5m 3s
test-e2e (flows)	6m 26s
test-migrations	2m 40s
test-migrations-from-stable - PostgreSQL 15-alpine	17m 29s
test-migrations-from-stable - PostgreSQL 16-alpine	16m 3s
test-unittest - PostgreSQL 15-alpine	14m 29s
test-unittest - PostgreSQL 16-alpine	14m 37s
ci-core-mark	0s
build	0s
pr-comment	0s
	2h 22m 32s

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