[No QA] Fix return behavior of OnyxUpdates apply() for side effect requests

[chuckdries]

Explanation of Change

OnyxUpdates.apply() has a code path for when a response's lastUpdateID has already been applied to the client (isUpdateOld). When the request includes successData/failureData/finallyData, it correctly strips the server's onyxData and applies the request's onyx updates, returning the response. But when the request has none of those, which is a common case for makeRequestWithSideEffects as many callers only need the raw response, it was returning Promise.resolve(), which resolves to undefined.

App/src/libs/actions/OnyxUpdates.ts

Line 203 in 436534c

return Promise.resolve();

This is becomes a problem under a race condition: if a Pusher update or a concurrent HTTP request advances lastUpdateIDAppliedToClient while a side-effect request is in flight, the response may hit this codepath and the caller receives undefined instead of the response it needs. Several existing callers are affected:

• AUTHENTICATE_PUSHER (Session/index.ts): No onyx data. An undefined response causes response?.jsonCode !== SUCCESS to be true, and the Pusher callback receives an error ("code: undefined message: undefined"). This could cause intermittent real-time update failures. Notably, the very mechanism that triggers Pusher re-auth (receiving Pusher updates) also advances lastUpdateIDAppliedToClient, creating the conditions for the race.
• GET_SCIM_TOKEN (Domain.ts): No onyx data. Returns a generic error to the user instead of the SCIM token.
• CREATE_DIGITAL_WALLET (Wallet.ts): No onyx data. Apple Pay / Google Pay card provisioning would fail silently.
• GENERATE_SPOTNANA_TOKEN (Link.ts): Passes {}. Travel link opening throws because undefined?.spotnanaToken is falsey.
• CONNECT_POLICY_TO_QUICKBOOKS_DESKTOP (QuickbooksDesktop.ts): No onyx data. Caller gets undefined instead of the Codat setup link.
• VERIFY_TEST_DRIVE_RECIPIENT (Onboarding.ts): No onyx data. Throws instead of checking account existence.
• MultifactorAuthentication (registerAuthenticationKey, requestAuthorizationChallenge, troubleshootMultifactorAuthentication): MFA operations fail with error status.

This fix changes Promise.resolve() to Promise.resolve(response) so the response is always propagated back to the caller, even when the Onyx update portion is correctly skipped as redundant.

Fixed Issues

Relates to #79379

This change was cherry-picked from #82704, and is necessary for it to work reliably

Tests

1. Run npm run test -- OnyxUpdatesTest.ts and verify the new test 'preserves the response object when HTTPS update is old and request has no successData/failureData/finallyData' passes
2. Run npm run test -- MiddlewareTest.ts and verify the new test 'preserves the response for side-effect requests when the update is already applied' passes

• Verify that no errors appear in the JS console

Offline tests

N/A

QA Steps

This is a race condition fix that is difficult to reproduce manually. The fix is validated by automated tests.

• Verify that no errors appear in the JS console

PR Author Checklist

• I linked the correct issue in the ### Fixed Issues section above
• I wrote clear testing steps that cover the changes made in this PR
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  • I added steps for the expected offline behavior in the Offline steps section
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  • I added steps to cover failure scenarios (i.e. verify an input displays the correct error message if the entered data is not correct)
  • I turned off my network connection and tested it while offline to ensure it matches the expected behavior (i.e. verify the default avatar icon is displayed if app is offline)
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[deetergp]

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  • I verified that comments were added to code that is not self explanatory
  • I verified that any new or modified comments were clear, correct English, and explained "why" the code was doing something instead of only explaining "what" the code was doing.
  • I verified any copy / text shown in the product is localized by adding it to src/languages/* files and using the translation method
  • I verified all numbers, amounts, dates and phone numbers shown in the product are using the localization methods
  • I verified any copy / text that was added to the app is grammatically correct in English. It adheres to proper capitalization guidelines (note: only the first word of header/labels should be capitalized), and is either coming verbatim from figma or has been approved by marketing (in order to get marketing approval, ask the Bug Zero team member to add the Waiting for copy label to the issue)
  • I verified proper file naming conventions were followed for any new files or renamed files. All non-platform specific files are named after what they export and are not named "index.js". All platform-specific files are named for the platform the code supports as outlined in the README.
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• If the PR modifies code that runs when editing or sending messages, I tested and verified there is no unexpected behavior for all supported markdown - URLs, single line code, code blocks, quotes, headings, bold, strikethrough, and italic.
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• If the PR modifies the UI (e.g. new buttons, new UI components, changing the padding/spacing/sizing, moving components, etc) or modifies the form input styles:
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• If a new page is added, I verified it's using the ScrollView component to make it scrollable when more elements are added to the page.
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