[eas-build-job] Add app_store_connect event context to WorkflowInterpolationContext

[sswrk]

Why

We're adding support for on.app_store_connect trigger in workflows. We need to enable users to access ASC context. This PR adds a basic schema, with just ASC app ID.

How

Extend StaticWorkflowInterpolationContextZ by adding app_store_connect schema with just event object containing just app, with just the id property.

Test Plan

Added unit test.

[linear]

ENG-20054 Add some `app_store_connect` event to workflow runs triggered from ASC

[github-actions]

Subscribed to pull request

File Patterns	Mentions
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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 54.29%. Comparing base (9328063) to head (5f83b2e).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #3530   +/-   ##
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  Coverage   54.29%   54.29%           
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  Files         822      822           
  Lines       35324    35324           
  Branches     7307     7307           
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  Hits        19175    19175           
  Misses      16062    16062           
  Partials       87       87           

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[sjchmiela]

Sweet!

I think we can later talk about what we could do to make app_store_connect helpful!

Like, we could load app_store_connect.app that would comprise of preloaded app.attributes and for build-upload-related webhooks we could do app_store_connect.build_upload that would be attributes too, etc.

[github-actions]

⏩ The changelog entry check has been skipped since the "no changelog" label is present.