no longer filtering to well-known database sources (#22864)

extensions/sql-database-projects/src/sqldbproj.d.ts

@@ -187,6 +187,11 @@ declare module 'sqldbproj' {
 		 */
 		addSqlCmdVariable(name: string, defaultValue: string): Promise<void>;
 
+		/**
+		 * Gets an array of all database sources specified in the project.
+		 */
+		getDatabaseSourceValues(): string[];
+
 		/**
 		 * Appends given database source to the DatabaseSource property element.
 		 * If property element does not exist, then new one will be created.