fix: limit database manager exports and update changeset

Signed-off-by: Minn Soe <contributions@minn.io>

.changeset/five-donkeys-brake.md

@@ -1,7 +1,7 @@
 ---
-'@backstage/backend-common': minor
-'@backstage/create-app': minor
-'@backstage/backend-test-utils': minor
+'@backstage/backend-common': patch
+'@backstage/create-app': patch
+'@backstage/backend-test-utils': patch
 ---
 
 Deprecates `SingleConnectionDatabaseManager` and provides an API compatible database

packages/backend-common/api-report.md

@@ -104,14 +104,6 @@ export function createServiceBuilder(_module: NodeModule): ServiceBuilderImpl;
 // @public (undocumented)
 export function createStatusCheckRouter(options: StatusCheckRouterOptions): Promise<express.Router>;
 
-// @public
-export interface DatabaseConnector {
-    createClient(dbConfig: Config, overrides?: Partial<Knex.Config>): Knex;
-    createNameOverride(name: string): Partial<Knex.Config>;
-    ensureDatabaseExists?(dbConfig: Config, ...databases: Array<string>): Promise<void>;
-    parseConnectionString(connectionString: string, client?: string): Knex.StaticConnectionConfig;
-}
-
 // @public (undocumented)
 export class DatabaseManager {
     forPlugin(pluginId: string): PluginDatabaseManager;

packages/backend-common/src/database/index.ts

@@ -15,6 +15,7 @@
  */
 
 export * from './connection';
-export * from './types';
 export * from './SingleConnection';
 export * from './DatabaseManager';
+
+export type { PluginDatabaseManager } from './types';