FIX: #1075 Image multiplier loop in ImageVariantsUtility.php

[jonasesr]

Loop over variants and apply the right multiplier instead of looping over variants.

Pull Request

Related Issues

• Fixes #1075

Prerequisites

• [ ] Changes have been tested on TYPO3 v9.5 LTS
• [ ] Changes have been tested on TYPO3 v10.4 LTS
• [x] Changes have been tested on TYPO3 v10.4 LTS
• [ ] Changes have been tested on TYPO3 dev-master
• [ ] Changes have been tested on PHP 7.2.x
• [ ] Changes have been tested on PHP 7.3.x
• [ ] Changes have been tested on PHP 7.4.x
• [ ] Changes have been checked for CGL compliance php-cs-fixer fix

Description

[Description of changes proposed in this pull request]

Steps to Validate

1. Create carousel content element
2. Watch processed files