feat: add Koala destination

[gustavowt]

What are the changes introduced in this PR?

Add new destination for Koala

Config -> rudderlabs/config-generator#53
Documentation -> rudderlabs/rudderstack-docs#1186

What is the related Linear task?

N/A

Please explain the objectives of your changes below

Add koala destination support for identify and track events

Any changes to existing capabilities/behaviour, mention the reason & what are the changes ?

N/A

Any new dependencies introduced with this change?

N/A

Any new generic utility introduced or modified. Please explain the changes.

N/A

Any technical or performance related pointers to consider with the change?

N/A

@coderabbitai review

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Developer checklist

• My code follows the style guidelines of this project

• No breaking changes are being introduced.

• All related docs linked with the PR?

• All changes manually tested?

• Any documentation changes needed with this change?

• Is the PR limited to 10 file changes?

• Is the PR limited to one linear task?

• Are relevant unit and component test-cases added?

Reviewer checklist

• Is the type of change in the PR title appropriate as per the changes?

• Verified that there are no credentials or confidential data exposed with the changes.

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[gitcommitshow]

Thank you for the contribution @gustavowt , the team will review the PR soon. Meanwhile, please sign this CLA

[yashasvibajpai]

Some minor test description improvements

[Gauravudia]

@gustavowt Have you performed e2e locally for this destination, Including verifying results from Koala platform for both identify and track call?
cc- @shrouti1507 @yashasvibajpai

[gustavowt]

@gustavowt Have you performed e2e locally for this destination, Including verifying results from Koala platform for both identify and track call? cc- @shrouti1507 @yashasvibajpai

tested both identify and track and these are all working as expected.

[Gauravudia]

LGTM

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 87.70%. Comparing base (c1b3736) to head (6b4f6f2).
Report is 1 commits behind head on develop.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #3122      +/-   ##
===========================================
+ Coverage    84.86%   87.70%   +2.84%     
===========================================
  Files          497      546      +49     
  Lines        27412    29514    +2102     
  Branches      6597     7036     +439     
===========================================
+ Hits         23262    25885    +2623     
+ Misses        3723     3291     -432     
+ Partials       427      338      -89     

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