[SDK-2072] Create GHA to sync release notes with ReadMe Version History

[nsingh-branch]

Description

Created a new Github Action that runs whenever a new Github Release is made. It uses the release tag and description to create a new section in the public readme doc's version history page. It also uses this data to send a Slack message in the SDK channel announcing the new release.

Fixes # (issue)

SDK-2072 -- Help Docs automate Readme changelogs

Type of change

• [x] New feature (non-breaking change which adds functionality)

How Has This Been Tested?

Please describe the tests that you ran to verify your changes. Provide instructions so we can reproduce. Please also list any relevant details for your test configuration

Using Act and actual releases in a test repo.

• [ ] Unit test
• [ ] Integration test

JS Budget Check

Please mention the size in kb before abd after this PR

Files	Before	After
dist/build.js.
dist/build.min.js

Checklist:

• [x] My code follows the style guidelines of this project
• [x] I have performed a self-review of my own code
• [x] I have commented my code, particularly in hard-to-understand areas
• [x] I have made corresponding changes to the documentation
• [x] My changes generate no new warnings
• [x] I have added tests that prove my fix is effective or that my feature works
• [x] New and existing unit tests pass locally with my changes
• [x] Any dependent changes have been merged and published in downstream modules
• [x] I have checked my code and corrected any misspellings

Mentions:

List the person or team responsible for reviewing proposed changes.

cc @BranchMetrics/saas-sdk-devs for visibility.

[github-actions[bot]]

Test Results

112 tests   105 :heavy_check_mark:  55s :stopwatch:     1 suites      7 :zzz:     1 files        0 :x:

Results for commit 334090f9.

:recycle: This comment has been updated with latest results.

[codecov[bot]]

Codecov Report

:exclamation: No coverage uploaded for pull request base (master@802e68a). Click here to learn what that means. The diff coverage is n/a.

@@            Coverage Diff            @@
##             master     #931   +/-   ##
=========================================
  Coverage          ?   24.59%           
=========================================
  Files             ?       15           
  Lines             ?     2322           
  Branches          ?        0           
=========================================
  Hits              ?      571           
  Misses            ?     1751           
  Partials          ?        0