refactor(syncengine): use structured binding in unlockE2eeFolders

Signed-off-by: Git'Fellow <12234510+solracsf@users.noreply.github.com>

Author: solracsf

src/libsync/syncengine.cpp

@@ -491,14 +491,13 @@ void OCC::SyncEngine::slotItemDiscovered(const OCC::SyncFileItemPtr &item)
 
 bool SyncEngine::unlockE2eeFolders(const QList<QPair<QByteArray, QByteArray>> &e2EeLockedFolders)
 {
-    for (const auto &e2EeLockedFolder : e2EeLockedFolders) {
-        const auto folderId = e2EeLockedFolder.first;
+    for (const auto &[folderId, folderTokenEncrypted] : e2EeLockedFolders) {
         qCInfo(lcEngine()) << "start unlock job for folderId:" << folderId;
         const auto folderToken = EncryptionHelper::decryptStringAsymmetric(
             _account->e2e()->getCertificateInformation(),
             _account->e2e()->paddingMode(),
             *_account->e2e(),
-            e2EeLockedFolder.second);
+            folderTokenEncrypted);
         if (!folderToken) {
             qCWarning(lcEngine()) << "decrypt failed";
             return false;