fix(encryption): Use IAppConfig for encryptHomeStorage read

Replace deprecated IConfig::getAppValue() with the typed
IAppConfig::getValueString() for the encryptHomeStorage check,
consistent with the rest of this PR's config migration.

Signed-off-by: Stephen Cuppett <steve@cuppett.com>

Author: cuppett

lib/private/Encryption/EncryptionWrapper.php

@@ -17,6 +17,7 @@
 use OCP\Files\Mount\IMountPoint;
 use OCP\Files\Storage\IDisableEncryptionStorage;
 use OCP\Files\Storage\IStorage;
+use OCP\IAppConfig;
 use OCP\IConfig;
 use OCP\IGroupManager;
 use OCP\IUserManager;
@@ -72,7 +73,7 @@ public function wrapStorage(string $mountPoint, IStorage $storage, IMountPoint $
 
 			// Skip encryption for home mounts if encryptHomeStorage is disabled
 			if ($mount instanceof HomeMountPoint
-				&& Server::get(IConfig::class)->getAppValue('encryption', 'encryptHomeStorage', '1') !== '1') {
+				&& Server::get(IAppConfig::class)->getValueString('encryption', 'encryptHomeStorage', '1') !== '1') {
 				return $storage;
 			}
 		}