feat: add support for getting anonymousId by note attributes array

[yashasvibajpai]

What are the changes introduced in this PR?

Adding support for setting the anonymousId for the webhook events received from Shopify Pixel App, using the note_attributes array property which is populated with the following data from the script loaded onto the Shopify store.
This value of anonymousId is from the cookies stored by Shopify on the store, which is essentially same as the value of clientId from the events received from the Web Pixel loaded onto the store.

What is the related Linear task?

Resolves INT-2943

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 ?

This getAnonymousIdFromAttributes function ensures that an anonymous ID is either retrieved from the event's note_attributes or generated based on the cart token if necessary.

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/3893/test-report.html

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 90.47%. Comparing base (e90d2ad) to head (a0d4efc).
Report is 26 commits behind head on develop.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #3893      +/-   ##
===========================================
+ Coverage    89.05%   90.47%   +1.42%     
===========================================
  Files          618      615       -3     
  Lines        33071    32329     -742     
  Branches      7814     7679     -135     
===========================================
- Hits         29452    29251     -201     
+ Misses        3336     2822     -514     
+ Partials       283      256      -27     

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[sonarcloud]

Quality Gate passed

Issues
20 New issues
1 Accepted issue

Measures
0 Security Hotspots
93.7% Coverage on New Code
1.5% Duplication on New Code

See analysis details on SonarQube Cloud