test: users context traits and underscore divide numbers configuration

[achettyiitr]

Description

• Added integration test for the associated transformer changes:
  • fix: allow users context traits and underscore divide numbers configuration rudder-transformer#3752
  • fix: populate users fields for sentAt, timestamp and originalTimestamp rudder-transformer#3753

Linear Ticket

• Resolves PIPE-1262.
• Resolves PIPE-1413.
• Resolves PIPE-1352
• Resolves PIPE-1421

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 73.07%. Comparing base (336b876) to head (7260952).

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #5132      +/-   ##
==========================================
- Coverage   73.12%   73.07%   -0.05%     
==========================================
  Files         437      437              
  Lines       50787    50787              
==========================================
- Hits        37136    37114      -22     
- Misses      11229    11257      +28     
+ Partials     2422     2416       -6     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.