fix: replay tracking plan bug

[cisse21]

Description

This PR is to fix the issue in the replay flow for connections with tracking plan . We were generating the commonMetaData from the input struct and were also altering the metadata before the transformer call while the commonMetaData was generated post the transformer call resulting in incorrect metadata propogated downstream. This PR fixes this by generating the commonMetaData before the transformer call

Linear Ticket

Fixes PIPE-1813

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 74.90%. Comparing base (abd2cdb) to head (a13a952).
Report is 1 commits behind head on release/1.39.x.

Additional details and impacted files

@@                Coverage Diff                 @@
##           release/1.39.x    #5389      +/-   ##
==================================================
+ Coverage           74.72%   74.90%   +0.18%     
==================================================
  Files                 437      437              
  Lines               61274    61273       -1     
==================================================
+ Hits                45784    45894     +110     
+ Misses              12950    12853      -97     
+ Partials             2540     2526      -14     

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

[mihir20]

Can we add some tests to verify the behaviour after the fix?

[cisse21]

@mihir20 It isn't that easy to add a test case for this scenario. Talked to Tejo and we would be adding this task to backlog, merging for now