fix: bpn migration if table exists #1554

Job	Run time
deployment-test / secret-presence	1s
deployment-test / test-prepare	2s
verify / verify-formatting	1m 47s
upgradeability-test / test-prepare	2s
verify / verify-helm-docs	8s
verify / verify-license-headers	8s
verify / verify-dependencies / Review-Allowed-Licenses	4s
verify / verify-dependencies / Dash-Verify-Licenses	1m 28s
upgradeability-test / test-upgradeability	14m 41s
deployment-test / test-in-memory	3m 53s
deployment-test / test-hashicorp-postgres	6m 36s
deployment-test / test-azure-vault-postgres	0s
verify / integration-tests	2m 10s
verify / api-tests	2m 39s
verify / dataplane-tests	2m 23s
verify / end-to-end-tests	27m 31s
verify / miw-integration-tests	4m 44s
verify / postgres-tests	10m 5s
verify / unit-tests	3m 37s
summary	0s
	1h 21m 59s

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