Update PHP-script to make use of newer version of a dependency -- 2

Job ID: 34714477

Budget: $10 – $30 USD

I have a PHP-script which synchronized a database table on our side with a marketplace.
There's a new version of the marketplace-API, I want to upgrade to that version.
There's no need to restructure or create new functionality.

The PHP-script itself is only 440 lines of code.

This is the migration guide of the Marketplace, only the Offer-section is used: https://api.bol.com/retailer/public/Retailer-API/v6/migrationguide/v5-v6/migrationguide.html

Current version makes use of: https://github.com/picqer/bol-retailer-php-client/tree/v5
New version should make use of: https://github.com/picqer/bol-retailer-php-client
This update should be done via composer.

I'll provide you with the following:
- SSH-access
- Location where you can find the script and vendor-directory
- Whatever information you need

Needed skill-set:
- PHP
- composer
- API-knowledge
- MySQL (MariaDB)
Related categories: PHP MySQL MariaDB API