Bump pub packages to newest version

lib/screen/pages/timetable/appointmentDetails.dart

@@ -35,7 +35,7 @@ class AppointmentDetails {
                 Icon(Icons.info, color: appointment.color),
                 const SizedBox(height: 10),
                 Text("${_getEventPrefix(timetableData.code)}${subject.alternateName} - (${subject.longName})", style: const TextStyle(fontSize: 30)),
-                Text("${Jiffy(appointment.startTime).format("HH:mm")} - ${Jiffy(appointment.endTime).format("HH:mm")}", style: const TextStyle(fontSize: 15)),
+                Text("${Jiffy.parseFromDateTime(appointment.startTime).format(pattern: "HH:mm")} - ${Jiffy.parseFromDateTime(appointment.endTime).format(pattern: "HH:mm")}", style: const TextStyle(fontSize: 15)),
               ],
             ),
           ),