[v3.6.3] Update changelog, version numbers and .md files for release

[DakshitBabbar]

Description

This PR updates the changelog and the version number in all the source files and .md files.
The link verifier is expected to fail as the README includes links to the new release.

Test Steps

NA

Checklist:

• I have tested my changes. No regression in existing tests.
• I have modified and/or added unit-tests to cover the code changes in this Pull Request.

Related Issue

By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 96.79%. Comparing base (e0cd4db) to head (a2c5b2d).
Report is 17 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #209      +/-   ##
==========================================
+ Coverage   94.02%   96.79%   +2.76%     
==========================================
  Files           3        3              
  Lines        1690     1745      +55     
  Branches      442      457      +15     
==========================================
+ Hits         1589     1689     +100     
+ Misses         17        0      -17     
+ Partials       84       56      -28     

Flag	Coverage Δ
unit_tests	96.79% <ø> (+2.76%)	⬆️

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