chore(docs): add note on idp logout #2175

Job	Run time
Run OIDC conformity tests	9m 7s
Generate SDKs	3m 31s
Run tests and lints	19m 58s
Run HSM tests	7m 54s
Run end-to-end tests (memory)	5m 11s
Run end-to-end tests (memory, --jwt)	4m 52s
Run end-to-end tests (postgres)	5m 7s
Run end-to-end tests (postgres, --jwt)	5m 6s
Run end-to-end tests (mysql)	5m 26s
Run end-to-end tests (mysql, --jwt)	5m 17s
Run end-to-end tests (cockroach)	5m 22s
Run end-to-end tests (cockroach, --jwt)	5m 56s
Build CLI docs	1m 3s
Generate changelog	0s
Generate release	0s
Draft newsletter	0s
Render version schema	0s
Release SDKs	0s
Pending approval Slack notification	0s
Send newsletter	0s
	1h 23m 50s

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