fix: add transaction to flow persistence #109

Job	Run time
Generate SDKs	3m 32s
Run OIDC conformity tests	8m 26s
Run tests and lints	16m 49s
Run HSM tests	6m 51s
Run end-to-end tests (memory)	5m 3s
Run end-to-end tests (memory, --jwt)	7m 5s
Run end-to-end tests (postgres)	5m 2s
Run end-to-end tests (postgres, --jwt)	4m 56s
Run end-to-end tests (mysql)	5m 24s
Run end-to-end tests (mysql, --jwt)	5m 13s
Run end-to-end tests (cockroach)	5m 6s
Run end-to-end tests (cockroach, --jwt)	5m 46s
Build CLI docs	51s
Generate changelog	0s
	1h 20m 4s

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