feat: handle concurrent refreshes and improve graceful refreshing #2106

Job	Run time
Run OIDC conformity tests	8m 24s
Generate SDKs	3m 38s
Run tests and lints	25m 42s
Run HSM tests	7m 42s
Run end-to-end tests (memory)	5m 22s
Run end-to-end tests (memory, --jwt)	5m 19s
Run end-to-end tests (postgres)	4m 57s
Run end-to-end tests (postgres, --jwt)	5m 18s
Run end-to-end tests (mysql)	5m 18s
Run end-to-end tests (mysql, --jwt)	5m 15s
Run end-to-end tests (cockroach)	6m 7s
Run end-to-end tests (cockroach, --jwt)	5m 53s
Build CLI docs	1m 5s
Generate changelog	0s
Generate release	0s
Render version schema	0s
Draft newsletter	0s
Release SDKs	0s
Pending approval Slack notification	0s
Send newsletter	0s
	1h 30m 0s

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