fix: enhancement: introduce user model for one signal

[anantjain45823]

What are the changes introduced in this PR?

Onboarding new api version for onesignal for User Schema referenced as V2 in code.
One Signal Docs

What is the related Linear task?

Resolves INT-2234

Please explain the objectives of your changes below

Put down any required details on the broader aspect of your changes. If there are any dependent changes, mandatorily mention them here

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 in new readability format?

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.

[devops-github-rudderstack]

Test report for this run is available at: https://test-integrations-dev.s3.amazonaws.com/integrations-test-reports/rudder-transformer/3499/test-report.html

[codecov]

Codecov Report

Attention: Patch coverage is 93.95973% with 9 lines in your changes missing coverage. Please review.

Project coverage is 88.05%. Comparing base (2fc4d6b) to head (1976e74).
Report is 339 commits behind head on hotfix/one_signal_user_schema.

Files	Patch %	Lines
src/v0/destinations/one_signal/util.js	89.83%	4 Missing and 2 partials ⚠️
src/v0/destinations/one_signal/transformV2.js	96.34%	3 Missing ⚠️

Additional details and impacted files

@@                        Coverage Diff                        @@
##           hotfix/one_signal_user_schema    #3499      +/-   ##
=================================================================
+ Coverage                          87.30%   88.05%   +0.74%     
=================================================================
  Files                                541      571      +30     
  Lines                              29325    30940    +1615     
  Branches                            6995     7405     +410     
=================================================================
+ Hits                               25603    27244    +1641     
+ Misses                              3379     3358      -21     
+ Partials                             343      338       -5     

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[sonarqubecloud]

Quality Gate passed

Issues
1 New issue
0 Accepted issues

Measures
0 Security Hotspots
88.4% Coverage on New Code
1.5% Duplication on New Code

See analysis details on SonarCloud