Image Cleanup Cron not working properly

/var/www/html/project/app/code/Embitel/ImageCleanup/Cron/Clean.php

/**
 * Copyright ©  All rights reserved.
 * See COPYING.txt for license details.
 */

declare(strict_types=1);

namespace EmbitelImageCleanupCron;

use MagentoFrameworkExceptionFileSystemException;
use MagentoFrameworkFilesystemDirectoryWriteInterface;
use MagentoFrameworkAppFilesystemDirectoryList;

class Clean
{
    /**
     * @var EmbitelImageCleanupModelimageFactory
     */
    public $_imageFactory;

    const IMAGE_CLEANUP_CRON = 'imagecleanup/general/enable';

    public function __construct(
        EmbitelImageCleanupModelImageFactory $ImageFactory,
        DirectoryList $directoryList,
        MagentoFrameworkFilesystemDriverFile $file,
        MagentoFrameworkFilesystem $filesystem,
        MagentoFrameworkAppConfigScopeConfigInterface $scopeConfig
    ) {
        $this->_imageFactory = $ImageFactory;
        $this->file = $file;
        $this->directoryList = $directoryList;
        $this->filesystem = $filesystem;
        $this->scopeConfig = $scopeConfig;
    }

    /**
     * {@inheritdoc}
     */
    public function execute()
    {
        $storeScope = MagentoStoreModelScopeInterface::SCOPE_STORE;
        $enable = $this->scopeConfig->getValue(self::IMAGE_CLEANUP_CRON, $storeScope);

        if ($enable) {
            $mediaRootDir = $this->directoryList->getPath('media');
            $linkedImagePathCollection = $this->_imageFactory->create()->getCollection();
            $linkedImagePathCollection->getSelect()
                ->reset(Zend_Db_Select::COLUMNS)
                ->columns(['value'])
                ->joinLeft(
                    ['emgve' => $linkedImagePathCollection->getTable('catalog_product_entity_media_gallery_value_to_entity')],
                    'main_table.value_id=emgve.value_id',
                    []
                )->where('emgve.value_id IS NOT NULL');

            $unlinkedImageCollection = $this->_imageFactory->create()->getCollection();
            $unlinkedImageCollection->getSelect()->where(
                'main_table.value NOT IN (
                ' . $linkedImagePathCollection->getSelect() . '
            )'
            );
            $varDirectory = $this->filesystem->getDirectoryWrite(DirectoryList::VAR_DIR);
            $varPath = $this->directoryList->getPath('var');
            $fileName = '_image.txt';
            $path = $varPath . date("Y-m-d") . $fileName;

            foreach ($unlinkedImageCollection as $image) {
                $imagePath = $mediaRootDir . '/catalog/product' . $image->getValue();
                $this->write($varDirectory, $path, $imagePath);
                if ($this->file->isExists($imagePath)) {
                    $this->file->deleteFile($imagePath);
                }
                $image->delete();
            }
        }
    }
    public function write(WriteInterface $writeDirectory, string $filePath, string $imagePath)
    {
        $stream = $writeDirectory->openFile($filePath, 'w+');
        $stream->lock();
        $fileData = $imagePath . "<br>";
        $stream->write($fileData);
        $stream->unlock();
        $stream->close();

        return true;
    }
}```


controller-:

/var/www/html/project/app/code/Embitel/ImageCleanup/Controller/Index/TestCron.php

```<?php

namespace EmbitelImageCleanupControllerIndex;

use MagentoBackendAppAction;
use MagentoBackendAppActionContext;
use MagentoFrameworkAppResponseInterface;
use MagentoFrameworkControllerResultRaw;
use EmbitelImageCleanupCronClean;

class TestCron extends Action
{
    /**
     * @var Clean
     */
    private $cleanCron;

    public function __construct(
        Context $context,
        Clean $cleanCron
        
    ) {
        parent::__construct($context);
        $this->cleanCron = $cleanCron;
    }

    /**
     * Execute controller action.
     */
    public function execute()
    {
        $this->cleanCron->execute();
        $this->getResponse()->setBody('Deleted Image Files cron job executed successfully.');

    }
}```

```Route-:

/var/www/html/project/app/code/Embitel/ImageCleanup/etc/frontend/routes.xml

<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xsi:noNamespaceSchemaLocation="urn:magento:framework:App/etc/routes.xsd">
    <router id="standard">
        <route id="ImageCleanup" frontName="ImageCleanup">
            <module name="Embitel_ImageCleanup" />
        </route>
    </router>
</config>```