在網路斷線情況下去取資料，request_get無法正確回傳Exception訊息

[cyyeh]

Describe the bug (please complete the following information)[清晰簡潔的描述 bug]
A clear and concise description of what the bug is.

在網路斷線情況下去取資料，request_get 無法正確回傳Exception訊息，因為此時reponse的值是空的，因此 if response.json()["msg"] == "success" and response.status_code == 200:會噴錯

To Reproduce (please complete the following information)[一步一步說明如何重現 bug]
Steps to reproduce the behavior:

1. 斷網
2. 呼叫FinMind api
3. 出現The “local variable referenced before assignment” error

Expected behavior (please complete the following information)[清晰簡潔的描述你預期的結果]
A clear and concise description of what you expected to happen.

應該要回傳Exception

Desktop (please complete the following information):[提供程式的執行環境]

• OS: Mac
• Browser: Chrome
• Python Version: 3.10
• FinMind package Version: 1.6.4

[linsamtw]

#286

[linsamtw]