Pin react-native-onyx to perf branch HEAD (731fe957) for testing

Bumps react-native-onyx to elirangoshen/perf/mergeCollection-multiGet-prewarm
HEAD (731fe957), which stacks on top of Expensify#787 (cache-first
mergeCollectionWithPatches) and adds a cold-cache pre-warm optimization:

- Fast path (every existingKey is in cache): skip pre-warm entirely.
  Preserves the original promise-chain depth so subscriber-callback
  timing is unchanged for warm-cache merges (the common case).

- Slow path (any existingKey is a cache miss): use Storage.multiGet
  to batch the missing keys into a single storage round-trip, instead
  of N parallel Storage.getItem calls.

Net runtime effect: same correctness, fewer storage operations on
cold-cache merges, same broadcast timing for warm-cache merges.

This branch also drops the now-obsolete `react-native-onyx+3.0.73.patch`
(the canonical upstream revert it implemented landed in Onyx PR Expensify#785,
which is already part of the pinned SHA).

Not for merge -- branch is for performance verification only.

Author: elirangoshen

package-lock.json

@@ -179,7 +179,7 @@
     "react-native-localize": "^3.5.4",
     "react-native-nitro-modules": "0.35.0",
     "react-native-nitro-sqlite": "9.6.0",
-    "react-native-onyx": "3.0.73",
+    "react-native-onyx": "git+https://github.com/Expensify/react-native-onyx.git#731fe95764798364c54797ed94df605a7b97c86d",
     "react-native-pager-view": "8.0.0",
     "react-native-pdf": "7.0.2",
     "react-native-permissions": "^5.4.0",

package.json

@@ -1,11 +1,3 @@
 # `react-native-onyx` patches
 
-### [react-native-onyx+3.0.73.patch](react-native-onyx+3.0.73.patch)
-
-- Reason:
-
-  > Reverts [Onyx PR #770 (the subscription-side skip for skippable collection member ids in subscribeToKey)](https://github.com/Expensify/react-native-onyx/pull/770) and the line [PR #779](https://github.com/Expensify/react-native-onyx/pull/779) added to work around [PR #770](https://github.com/Expensify/react-native-onyx/pull/770)'s silent-no-callback contract.
-
-- Upstream PR/issue: https://github.com/Expensify/react-native-onyx/pull/785
-- E/App issue: https://github.com/Expensify/App/issues/86181
-- PR Introducing Patch: https://github.com/Expensify/App/pull/90764
+_No active patches._