fix: add messageId, rudderId and type based on new schema

[BonapartePC]

Description

add messageId, rudderId and request type based on new rudder schema in the internal batch endpoint.

Related PRs:
rudderlabs/rudder-schemas#35
https://github.com/rudderlabs/rudder-ingestion-svc/pull/234
https://github.com/rudderlabs/rudder-src-router/pull/144

Linear Ticket

Fixes PIPE-1557

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

Attention: Patch coverage is 56.52174% with 20 lines in your changes missing coverage. Please review.

Project coverage is 72.93%. Comparing base (23f943e) to head (71fb0cb).
Report is 2 commits behind head on master.

Files with missing lines	Patch %	Lines
gateway/handle.go	56.52%	15 Missing and 5 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #5140      +/-   ##
==========================================
- Coverage   72.95%   72.93%   -0.02%     
==========================================
  Files         438      438              
  Lines       50911    50951      +40     
==========================================
+ Hits        37141    37160      +19     
- Misses      11337    11354      +17     
- Partials     2433     2437       +4     

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