Update claims instead of overwrite from webhook response #2045

Job	Run time
Run OIDC conformity tests	8m 58s
Generate SDKs	3m 56s
Run HSM tests	7m 18s
Run tests and lints	15m 14s
Run end-to-end tests (memory)	5m 37s
Run end-to-end tests (memory, --jwt)	5m 38s
Run end-to-end tests (postgres)	4m 59s
Run end-to-end tests (postgres, --jwt)	5m 31s
Run end-to-end tests (mysql)	5m 37s
Run end-to-end tests (mysql, --jwt)	6m 5s
Run end-to-end tests (cockroach)	6m 23s
Run end-to-end tests (cockroach, --jwt)	6m 59s
Build CLI docs	1m 15s
Generate changelog	0s
Generate release	0s
Render version schema	0s
Release SDKs	0s
Draft newsletter	0s
Pending approval Slack notification	0s
Send newsletter	0s
	1h 23m 30s

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