[Bug] MacOS desktop app v2.15.1 UpStash sync error

### 📦 Deployment Method

Official installation package

### 📌 Version

Version 2.15.1 (20240911.040710)

### 💻 Operating System

macOS

### 📌 System Version

Sonoma 14.6.1

### 🌐 Browser

Chrome

### 📌 Browser Version

Not related

### 🐛 Bug Description

UpStash sync connectivity test passed but sync failed while using MacOS desktop app

Confirmed UpStash settings are correct as the sync functions flawlessly with my self-hosted web version. UpStash settings are identical

### 📷 Recurrence Steps

_No response_

### 🚦 Expected Behavior

Successful sync

### 📝 Additional Information

_No response_