[Forwardport] catalog:images:resize CLI command fix

[rostyslav-hymon]

Original Pull Request

#14154

Description

Updated catalog:images:resize CLI command to return correct exit code on failure. Currently, the conditional check to verify if there are any images to resize returns \Magento\Framework\Console\Cli::RETURN_SUCCESS (a const === 0) if there aren't any images. Per the comment above the return—"we must have an exit code higher than zero to indicate something was wrong"—this PR returns \Magento\Framework\Console\Cli::RETURN_FAILURE (a const === 1).

Fixed Issues (if relevant)

n/a

Manual testing scenarios

n/a

Contribution checklist

• Pull request has a meaningful description of its purpose
• All commits are accompanied by meaningful commit messages
• All new or changed code is covered with unit/integration tests (if applicable)
• All automated tests passed successfully (all builds on Travis CI are green)