Upgrade es-py to add Python3.9 support for sql-cli

[joshuali925]

Issue #, if available:

• Python 3.9 support for sql-cli #1052

Description of changes:

• upgrade elasticsearch-py dependency from 7.5.1 to 7.10.1

tox test passed, manually tested queries and remote connection to security enabled endpoint (odfe 1.13), sql doctest also passed

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[codecov]

Codecov Report

Merging #1054 (b8e3ade) into develop (3e8c688) will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             develop    #1054   +/-   ##
==========================================
  Coverage      99.89%   99.89%           
  Complexity      2404     2404           
==========================================
  Files            234      234           
  Lines           5464     5464           
  Branches         326      326           
==========================================
  Hits            5458     5458           
  Misses             5        5           
  Partials           1        1           

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