Fix debug build memory leak from fabric marker in updatePropsSynchronously (facebook#56561)

Summary:

## Changelog:

[Internal] [Fixed] - Fix debug build memory leak from fabric marker in updatePropsSynchronously

## Problem

`FabricUIManager.synchronouslyUpdateViewOnUIThread` logs `FABRIC_UPDATE_UI_MAIN_THREAD_START/END` fabric markers with a unique, ever-incrementing `commitNumber`. While `Fb4aReactFabricPerfLogger` consumed these markers correctly (via its `EventMetadata` pattern), `DevToolsReactPerfLogger` stored them in its `fabricCommitMarkers` map and only cleaned up entries on `FABRIC_BATCH_EXECUTION_END` — which is never emitted for synchronous updates. At 60fps with multiple animated views, ~300 orphaned `FabricCommitPoint` entries accumulated per second, causing unbounded memory growth.

## Why only UPDATE_UI_MAIN_THREAD is affected

All other fabric markers (COMMIT, DIFF, LAYOUT, FINISH_TRANSACTION, BATCH_EXECUTION) are emitted from the normal commit lifecycle in C++ → `IntBufferBatchMountItem`. They share the same `commitNumber` and always terminate with `BATCH_EXECUTION_END`, so they get cleaned up. `UPDATE_UI_MAIN_THREAD` is the only marker emitted from a separate path (`synchronouslyUpdateViewOnUIThread`) with its own `commitNumber` space (starting at 10000) and no `BATCH_EXECUTION_END`.

## Fix

`DevToolsReactPerfLogger` now also treats `FABRIC_UPDATE_UI_MAIN_THREAD_END` as a commit-end signal, triggering `onFabricCommitEnd` and cleanup of the `fabricCommitMarkers` entry. This is safe because `UPDATE_UI_MAIN_THREAD` markers are only emitted by `synchronouslyUpdateViewOnUIThread` (which never emits `BATCH_EXECUTION_END`), while normal commits use `BATCH_EXECUTION_END` (and never emit `UPDATE_UI_MAIN_THREAD`). No double-cleanup risk.

Reviewed By: cipolleschi

Differential Revision: D101843147

Author: zeyap

packages/react-native/ReactAndroid/src/main/java/com/facebook/react/fabric/DevToolsReactPerfLogger.kt

@@ -134,7 +134,10 @@ public class DevToolsReactPerfLogger : FabricMarkerListener {
       }
       commitPoint.addPoint(name, FabricCommitPointData(timestamp, counter))
 
-      if (name == ReactMarkerConstants.FABRIC_BATCH_EXECUTION_END && timestamp > 0) {
+      if (
+          (name == ReactMarkerConstants.FABRIC_BATCH_EXECUTION_END ||
+              name == ReactMarkerConstants.FABRIC_UPDATE_UI_MAIN_THREAD_END) && timestamp > 0
+      ) {
         onFabricCommitEnd(commitPoint)
         fabricCommitMarkers.remove(instanceKey)
       }