[TASK] Replace GeneralUtility::hmac usage in ext:fluid

With #102761, the new `HashService` has been introduced to ensure
that HMAC generation will always use an additional secret. As a
follow-up patch, `GeneralUtility::hmac` will be deprecated when all
usages in the core have been replaced with the new `HashService`.

With this change, usages of `GeneralUtility::hmac` in ext:fluid are
replaced by the new HashService.

Resolves: #103246
Releases: main
Change-Id: I7090d13590dc0c5d871eadf73aa9c1278cda1f88
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/83178
Reviewed-by: Oliver Klee <typo3-coding@oliverklee.de>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>
Reviewed-by: Stefan Bürk <stefan@buerk.tech>
Tested-by: core-ci <typo3@b13.com>
Tested-by: Stefan Bürk <stefan@buerk.tech>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>

typo3/sysext/fluid/Classes/ViewHelpers/Link/FileViewHelper.php

@@ -18,6 +18,7 @@
 namespace TYPO3\CMS\Fluid\ViewHelpers\Link;
 
 use TYPO3\CMS\Core\Core\Environment;
+use TYPO3\CMS\Core\Crypto\HashService;
 use TYPO3\CMS\Core\Resource\File;
 use TYPO3\CMS\Core\Resource\FileInterface;
 use TYPO3\CMS\Core\Resource\FileReference;
@@ -149,7 +150,8 @@ protected function createFileDumpUrl(FileInterface $file): string
             $parameters['fn'] = $filename;
         }
 
-        $parameters['token'] = GeneralUtility::hmac(implode('|', $parameters), 'resourceStorageDumpFile');
+        $hashService = GeneralUtility::makeInstance(HashService::class);
+        $parameters['token'] = $hashService->hmac(implode('|', $parameters), 'resourceStorageDumpFile');
 
         return GeneralUtility::locationHeaderUrl(PathUtility::getAbsoluteWebPath(Environment::getPublicPath() . '/index.php'))
             . '?' . http_build_query($parameters, '', '&', PHP_QUERY_RFC3986);