[Iterable] - dataField type bug

[joe-ayoub-segment]

Fix which converts dataField values back to booleans or numbers.

This is to work around the stringification of key:value object fields as they are passed to the back end.

Testing

Unit test added.

[codecov]

Codecov Report

Attention: Patch coverage is 77.27273% with 5 lines in your changes missing coverage. Please review.

Project coverage is 78.55%. Comparing base (2ef6a2c) to head (066499f).
Report is 3 commits behind head on main.

Files with missing lines	Patch %	Lines
...s/src/destinations/iterable/trackPurchase/index.ts	33.33%	0 Missing and 2 partials ⚠️
...ions/src/destinations/iterable/trackEvent/index.ts	50.00%	0 Missing and 1 partial ⚠️
...ions/src/destinations/iterable/updateUser/index.ts	50.00%	0 Missing and 1 partial ⚠️
...ination-actions/src/destinations/iterable/utils.ts	92.30%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2588   +/-   ##
=======================================
  Coverage   78.54%   78.55%           
=======================================
  Files        1024     1024           
  Lines       18069    18074    +5     
  Branches     3409     3410    +1     
=======================================
+ Hits        14193    14198    +5     
  Misses       2742     2742           
  Partials     1134     1134           

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