Version 100.3.3

Version 100.3.3 :

• Fix error on price attribute import
• Fix category attribute set getter to prevent mixed id in case of data migration
• Fix metric import when metric attribute code contains uppercase characters
• Add product model batch size and request size to prevent MYSQL errors (https://help.akeneo.com/magento2-connector/v100/articles/05-configure-products.html#product-model-batch-size-and-product-model-update-length)