STRATCONN-5986 - [Facebook Pixel] - minor updates before Public beta

[joe-ayoub-segment]

Some minor tweaks after meeting with facebook.

• adds hashing for PII
• more unit tests

Testing

Unit tests added. New integration.

Security Review

Please ensure sensitive data is properly protected in your integration.

• Reviewed all field definitions for sensitive data (API keys, tokens, passwords, client secrets) and confirmed they use type: 'password'

New Destination Checklist

• Extracted all action API versions to verioning-info.ts file. example

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 31.86%. Comparing base (c5c75a3) to head (d62b494).

❌ Your project check has failed because the head coverage (31.86%) is below the target coverage (70.00%). You can increase the head coverage or adjust the target coverage.

Additional details and impacted files

@@             Coverage Diff             @@
##             main    #3615       +/-   ##
===========================================
- Coverage   80.34%   31.86%   -48.49%     
===========================================
  Files        1283       15     -1268     
  Lines       23583      747    -22836     
  Branches     4728      125     -4603     
===========================================
- Hits        18947      238    -18709     
+ Misses       3755      509     -3246     
+ Partials      881        0      -881     

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