Update version of 26.452 reference code

Bug description

Apparently, the BASOP EVS reference code is based upon

/*====================================================================================
    EVS Codec 3GPP TS26.452 Nov 04, 2021. Version 16.4.0
  ====================================================================================*/

Ways to reproduce

Box folder: ...\Box_EXTERNAL_IVAS_BASOP_VERIFICATION\issues\issue-xxxx