Update changelog for v0.20.6

[rahulbabu95]

Description of changes:
Update changelog for v0.20.6

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 73.56%. Comparing base (daa3336) to head (d5f834d).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #8802   +/-   ##
=======================================
  Coverage   73.56%   73.56%           
=======================================
  Files         578      578           
  Lines       36610    36610           
=======================================
  Hits        26931    26931           
  Misses       7953     7953           
  Partials     1726     1726           

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[abhay-krishna]

/lgtm

[rahulbabu95]

/approve

[eks-distro-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: rahulbabu95

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[rahulbabu95]

/cherrypick release-0.20

[eks-distro-pr-bot]

@rahulbabu95: new pull request created: #8803

In response to this:

/cherrypick release-0.20

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