feat(releases-widget): define providers as integrations (#3253)

Co-authored-by: Meier Lukas <meierschlumpf@gmail.com>

packages/db/migrations/custom/index.ts

@@ -0,0 +1,6 @@
+import type { Database } from "../..";
+import { migrateReleaseWidgetProviderToOptionsAsync } from "./0000_release_widget_provider_to_options";
+
+export const applyCustomMigrationsAsync = async (db: Database) => {
+  await migrateReleaseWidgetProviderToOptionsAsync(db);
+};