[build-tools] route to api v2 endpoint

[AbbanMustafa]

Why

I added this #3674 but forgot to prefix with v2/. Will clean up all these routes to use expoApiV2BaseUrl after.

[github-actions]

Subscribed to pull request

File Patterns	Mentions
**/*	@douglowder

Generated by CodeMention

[github-actions]

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

[codecov]

Codecov Report

❌ Patch coverage is 0% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 56.51%. Comparing base (daa4c60) to head (b6ede97).

Files with missing lines	Patch %	Lines
...ild-tools/src/steps/functions/restoreBuildCache.ts	0.00%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #3680   +/-   ##
=======================================
  Coverage   56.51%   56.51%           
=======================================
  Files         887      887           
  Lines       38416    38416           
  Branches     8007     8007           
=======================================
  Hits        21707    21707           
  Misses      16611    16611           
  Partials       98       98           

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