feat: remove flow cookie #1589

Job	Run time
Run OIDC conformity tests	13m 56s
Generate SDKs	2m 3s
Run HSM tests	8m 8s
Run tests and lints	21m 51s
Run end-to-end tests (memory)	6m 45s
Run end-to-end tests (memory, --jwt)	6m 50s
Run end-to-end tests (postgres)	6m 48s
Run end-to-end tests (postgres, --jwt)	8m 17s
Run end-to-end tests (mysql)	7m 23s
Run end-to-end tests (mysql, --jwt)	7m 13s
Run end-to-end tests (cockroach)	11m 1s
Run end-to-end tests (cockroach, --jwt)	7m 58s
Build CLI docs	1m 39s
Generate changelog	0s
Generate release	0s
Draft newsletter	0s
Release SDKs	0s
Render version schema	0s
Pending approval Slack notification	0s
Send newsletter	0s
	1h 49m 52s

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