release-publish-prep: license-files ride the packages — workspace-inherited license-files = [LICENSE-MIT, LICENSE-APACHE] on the four published crates (dual-texts in each .crate root, the license field's texts shipped, not just named)

alkstore-postgres/Cargo.toml

@@ -3,6 +3,7 @@ name = "alkstore-postgres"
 version.workspace = true
 edition.workspace = true
 license.workspace = true
+license-files.workspace = true
 repository.workspace = true
 readme = "README.md"
 description = "Postgres engine for alkstore: multi-host native, natively async over tokio-postgres + deadpool-postgres with LISTEN-driven wake and a dedicated LISTEN connection per listening process"