Missing sodium library on magento/magento-cloud-docker-php:7.4-cli-1.3.2

[duckchip]

Preconditions

1. use docker and install magento 2.4.2

Steps to reproduce

1. use docker image magento/magento-cloud-docker-php:7.4-cli-1.3.2
2. run bin/magento setup:install --cleanup-database

Expected result

1. succesfull setup

Actual result

Starting Magento installation:
File permissions check...
[Progress: 1 / 998]
Required extensions check...
In Installer.php line 546:
                                          
  Missing following extensions: 'sodium'  

[BaDos]

The internal task MCLOUD-9244 was created