Fix sendOrgAdminEmailCsv flaky backend test #6127

Job	Run time
workflow_changes / check_for_changes	8s
backend_changes / check_for_changes	5s
cypress_changes / check_for_changes	5s
database_changes / check_for_changes	6s
frontend_changes / check_for_changes	5s
nginx_changes / check_for_changes	5s
build_backend_image	1m 44s
build_database_image	0s
build_cypress_image	0s
build_frontend_image	0s
build_frontend_lighthouse_image	0s
tests / function-tests	32s
liquibase_action_checks / test-db-liquibase-action	2m 18s
tests / backend-tests	8m 21s
tests / frontend-tests	3m 11s
tests / backend-lint	1m 50s
tests / build-jar	1m 10s
tests / frontend-lint-and-build	2m 22s
build_nginx_image	0s
e2e_local	0s
lighthouse	0s
tests / sonar	1m 43s
	23m 45s

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