some emoji will become wrong character stored in bigquery while using load_table_from_json

[grimmerk]

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Please run down the following list and make sure you've tried the usual "quick fixes":

• Search the issues already opened: https://github.com/googleapis/python-bigquery/issues
• Search StackOverflow: https://stackoverflow.com/questions/tagged/google-cloud-platform+python

If you are still having issues, please be sure to include as much information as possible:

Environment details

• OS type and version: macOS Big Sur
• Python version: python --version 3.8.8
• pip version: pip --version: 21.0.1
• google-cloud-bigquery version: pip show google-cloud-bigquery: 2.6.1

Steps to reproduce

1. insert any emoji which is over 0xFFFF into a dict, e.g. 🏦 (\U0001F3E6)
2. use client.load_table_from_json(rows_to_insert... to upload
3. see that emoji icon become �� in BigQuery web console

Code example

    bank = "\U0001F3E6" 
    rows_to_insert = [{"emoji": bank}]
    client.load_table_from_json(rows_to_insert, table_id, job_config=job_config)

Stack trace

# example

Making sure to follow these steps will guarantee the quickest resolution possible.

Thanks!