Fix "cannot import name 'force_text'" error to support Django > 4.0

[frankjlin16]

The "ImportError: cannot import name 'force_text' from 'django.utils.encoding'" error occurs when a package or module tries to import the force_text function from Django's encoding module, but the function has been removed and replaced with force_str in Django version 4. @huiguangjun @baiyubin

[CLAassistant]

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