feat: allow snowflake cursor on write_pandas.

[ya7010]

Please answer these questions before submitting your pull requests. Thanks!

1. What GitHub issue is this PR addressing? Make sure that there is an accompanying issue to your PR.

   Fixes #1957

2. Fill out the following pre-review checklist:

   • [x] I am adding a new automated test(s) to verify correctness of my new code
   • [ ] I am adding new logging messages
   • [ ] I am adding a new telemetry message
   • [ ] I am modifying authorization mechanisms
   • [ ] I am adding new credentials
   • [ ] I am modifying OCSP code
   • [ ] I am adding a new dependency

3. Please describe how your code solves the related issue.

The write_pandas process can be described more intuitively while dealing with cursors using with.

with snowflake_conn.cursor() as cursor:
    df = cursor.execute("...").fetch_pandas_all()
    write_pandas(cursor, df)

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[ya7010]

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