Support Ubuntu 20.04 for esm / pro client

[feng-j678]

[x] Update extension to support pro client ubuntu 20

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 92.42%. Comparing base (688f43e) to head (dc11e00).
Report is 1 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #292   +/-   ##
=======================================
  Coverage   92.42%   92.42%           
=======================================
  Files          97       97           
  Lines       16199    16199           
=======================================
  Hits        14972    14972           
  Misses       1227     1227           

Flag	Coverage Δ
python27	92.42% <100.00%> (ø)
python39	92.42% <100.00%> (ø)

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