Fix CLI output when using clip with the -t flag

if you use the CLI with -t/--totp flag, the program prints out: "Entry's "password" attribute copied to the clipboard!"
expected output is "Entry's "totp" attribute copied to the clipboard!" the same when you run with -a totp

src/cli/Clip.cpp

@@ -116,6 +116,7 @@ int Clip::executeWithDatabase(QSharedPointer<Database> database, QSharedPointer<
             return EXIT_FAILURE;
         }
 
+        selectedAttribute = "totp";
         found = true;
         value = entry->totp();
     } else if (Utils::EntryFieldNames.contains(selectedAttribute)) {