test: fix parser and redirect test case

[NguyenHoangSon96]

Closes #

Proposed Changes

• New "pandas" versions return different data types than old ones.
  In newer Pandas versions "string" type will be "str", in older versions "string" type will be "object"
  In newer Pandas versions 'time' will be "datetime64[us, UTC]", in older versions "time" will be "datetime64[ns, UTC]"
  ⇒ Add code to convert "str" back to "object", "datetime64[us, UTC]" back to "datetime64[ns, UTC]"
• New "urllib3" doesn't auto-redirect POST request anymore.
  ⇒ Manually add Retry(redirect=1, remove_headers_on_redirect=[]) to make it redirect and stop it from removes "Authorization" header.

Checklist

• CHANGELOG.md updated
• Rebased/mergeable
• A test has been added if appropriate
• pytest tests completes successfully
• Commit messages are conventional
• Sign CLA (if not already signed)

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Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 90.32%. Comparing base (fb5d3f2) to head (ead668e).
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Additional details and impacted files

@@            Coverage Diff             @@
##           master     #704      +/-   ##
==========================================
+ Coverage   90.29%   90.32%   +0.03%     
==========================================
  Files          40       40              
  Lines        3533     3546      +13     
==========================================
+ Hits         3190     3203      +13     
  Misses        343      343              

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[karel-rehor]

I'm looking again at the changes to test/test_WriteApi.py. I'm not sure that the retries object alone is affecting changes to the client behavior.

I'd suggest a minor documentation change.

README.md information should be more specific regarding which Retry solution should be used based on the urllib3 release they may be using.