Docs: typo in javadoc for @Transactional

[mikehearn]

rollbackFor docs should be the exceptions that do trigger a rollback.

    /**
     * Defines the exceptions that will not result in a rollback.
     *
     * @return The exception types that will not result in a rollback.
     * @since 3.5.0
     */
    Class<? extends Throwable>[] rollbackFor() default {};

This is confusing because it's unclear what happens if an exception is neither in the rollbackFor nor noRollbackFor lists. It ideally would be clearer.