feat(auth): Removed dependency on oauth2 token for refreshToken and move to initiateAuth for hostedUI

[gpanshu]

• PR title and description conform to Pull Request guidelines.

Issue #, if available:

Description of changes:

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(Please add a line here how the changes were tested)

Documentation update required?

• No
• Yes (Please include a PR link for the documentation update)

General Checklist

• Added Unit Tests
• Added Integration Tests
• Security oriented best practices and standards are followed (e.g. using input sanitization, principle of least privilege, etc)

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[codecov-commenter]

Codecov Report

Merging #2543 (9130d5c) into main (e6c2aa1) will increase coverage by 0.01%.
The diff coverage is 100.00%.

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@@            Coverage Diff             @@
##             main    #2543      +/-   ##
==========================================
+ Coverage   41.16%   41.18%   +0.01%     
==========================================
  Files         874      874              
  Lines       27635    27625      -10     
  Branches     3880     3879       -1     
==========================================
+ Hits        11375    11376       +1     
+ Misses      15039    15028      -11     
  Partials     1221     1221