DataConv 0.7.5

Canada staging release. Fixes environment-scoped Cloud SQL secret loading and forces API/worker restarts after runtime configuration rotation. Immutable image: northamerica-northeast2-docker.pkg.dev/vet-chain-test-1/animal-dataconv-images/dataconv-api@sha256:40ae8a27cee827158e5d9103c5395172b568078f1c57110d0d4e75e60b4557ce