chore: update accountDefination type with authenticationType

[ItsSudip]

Description

With this pr we are updating the accountDefinition type with authenticationType.

Linear Ticket

https://linear.app/rudderstack/issue/INT-3447/integrating-workspace-config-to-rudder-server

Security

• The code changed/added as part of this pull request won't create any security issues with how the software is being used.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 76.87%. Comparing base (fbc4abe) to head (4ef804a).

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #5791      +/-   ##
==========================================
- Coverage   76.90%   76.87%   -0.04%     
==========================================
  Files         491      491              
  Lines       67183    67183              
==========================================
- Hits        51667    51644      -23     
- Misses      12692    12713      +21     
- Partials     2824     2826       +2     

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