fix(backend): spool released exports safely #12415

Job	Run time
should-build	4s
trigger-ena-submission	0s
trigger-ingest	0s
trigger-backend	0s
trigger-preprocessing-nextclade	0s
trigger-config-preprocessor	0s
trigger-dummy-preprocessing	0s
trigger-ena-submission-flyway	0s
trigger-keycloakify	0s
trigger-loculus-silo	0s
	4s

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