FIX: `ApiClient.js` Fixes

- Converted `defaultHeaders` from a shared global state to a local state within each `ApiClient` instance.
- Fixed the overriding of the Authorization header in `GetUserInfo` when `defaultHeaders` already had an Authorization header.
- Updated the SDK release version.

Version 8.0.0-rc2-v2.1-24.2.00.00 release (#363)

Co-authored-by: root <[email protected]>

Version 8.0.0-rc1-v2.1-24.2.00.00 release (#358)

Co-authored-by: root <[email protected]>

Version 7.0.2-v2.1-24.1.01.00 release (#355)

Co-authored-by: root <[email protected]>

Version 7.0.1-v2.1-24.1.01.00 release (#352)

Co-authored-by: root <[email protected]>

Version 7.0.0 release (#349)

* Version 7.0.0-v2.1-24.1.01.00 release

* Update package.json

Matched the version

Signed-off-by: asif-docusign <[email protected]>

---------

Signed-off-by: asif-docusign <[email protected]>
Co-authored-by: root <[email protected]>

Update package.json (#348)

Signed-off-by: Mudit Garg <[email protected]>

Version 6.6.0-rc2-v2.1-23.4.02.00 release (#344)

Co-authored-by: root <[email protected]>

Version 6.5.1-v2.1-23.3.01.02 release (#341)

Co-authored-by: root <[email protected]>

Version 6.5.0-v2.1-23.3.01.02 release (#339)

Co-authored-by: root <[email protected]>