feat: add flag to export public keys #1650

Job	Run time
Run OIDC conformity tests	9m 25s
Generate SDKs	1m 23s
Run end-to-end tests (memory)	4m 49s
Run end-to-end tests (memory, --jwt)	4m 51s
Run end-to-end tests (postgres)	5m 14s
Run end-to-end tests (postgres, --jwt)	4m 51s
Run end-to-end tests (mysql)	5m 15s
Run HSM tests	4m 41s
Run end-to-end tests (mysql, --jwt)	5m 3s
Run tests and lints	3m 47s
Run end-to-end tests (cockroach)	5m 8s
Run end-to-end tests (cockroach, --jwt)	5m 14s
Build CLI docs	0s
Generate changelog	0s
Generate release	0s
Render version schema	0s
Release SDKs	0s
Draft newsletter	0s
Pending approval Slack notification	0s
Send newsletter	0s
	59m 41s

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