Update origin address endpoint

[atorresveiga]

Part of: #12437

Description

This PR updates the get origin addresses endpoint to use the address/origins route, not the deprecated origin-addresses.

More context p1735753074739799/1734441247.830119-slack-C05VBLKHHV1

Testing information

Make sure CI passes

The tests that have been performed

Check that the endpoint retrieves the expected information

• I have considered if this change warrants release notes and have added them to RELEASE-NOTES.txt if necessary. Use the "[Internal]" label for non-user-facing changes.

Reviewer (or Author, in the case of optional code reviews):

Please make sure these conditions are met before approving the PR, or request changes if the PR needs improvement:

• The PR is small and has a clear, single focus, or a valid explanation is provided in the description. If needed, please request to split it into smaller PRs.
• Ensure Adequate Unit Test Coverage: The changes are reasonably covered by unit tests or an explanation is provided in the PR description.
• Manual Testing: The author listed all the tests they ran, including smoke tests when needed (e.g., for refactorings). The reviewer confirmed that the PR works as expected on big (tablet) and small (phone) in case of UI changes, and no regressions are added.

[wpmobilebot]

📲 You can test the changes from this Pull Request in WooCommerce-Wear Android by scanning the QR code below to install the corresponding build.

	App Name	WooCommerce-Wear Android
	Platform	⌚️ Wear OS
	Flavor	Jalapeno
	Build Type	Debug
	Commit	79b512a
	Direct Download	woocommerce-wear-prototype-build-pr13297-79b512a.apk

[wpmobilebot]

📲 You can test the changes from this Pull Request in WooCommerce Android by scanning the QR code below to install the corresponding build.

	App Name	WooCommerce Android
	Platform	📱 Mobile
	Flavor	Jalapeno
	Build Type	Debug
	Commit	79b512a
	Direct Download	woocommerce-prototype-build-pr13297-79b512a.apk

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 0% with 1 line in your changes missing coverage. Please review.

Project coverage is 41.10%. Comparing base (069f146) to head (79b512a).
Report is 4 commits behind head on trunk.

Files with missing lines	Patch %	Lines
...inglabels/networking/WooShippingLabelRestClient.kt	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff            @@
##              trunk   #13297   +/-   ##
=========================================
  Coverage     41.10%   41.10%           
  Complexity     6421     6421           
=========================================
  Files          1321     1321           
  Lines         77177    77177           
  Branches      10643    10643           
=========================================
  Hits          31722    31722           
  Misses        42646    42646           
  Partials       2809     2809           

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