Make setPointerEvents public on ReactViewGroup.java (#45975)

Summary:
I maintain the `react-native-svg` library, where our elements extend `ReactViewGroup`. Currently, `ReactViewGroup` only exposes the getter for `mPointerEvents` publicly, so we cannot set it. To properly handle `pointerEvents`, we would have to duplicate all methods related to `mPointerEvents`, which results in maintaining a separate state. This duplication can lead to desynchronization between the state in our class and the state in the superclass.

PR with a workaround that we can avoid with this change software-mansion/react-native-svg#2395

## Changelog:

[ANDROID] [CHANGED] - make `setPointerEvents` public

Pull Request resolved: #45975

Test Plan: This change was tested manually by making the field public, allowing dependent classes to override or reference it.

Reviewed By: cortinico

Differential Revision: D61124293

Pulled By: javache

fbshipit-source-id: 389d0a670375a8a68c975294f98c33c28ef41ffe

Author: jakex7

packages/react-native/ReactAndroid/api/ReactAndroid.api

@@ -8247,6 +8247,7 @@ public class com/facebook/react/views/view/ReactViewGroup : android/view/ViewGro
 	public fun setOpacityIfPossible (F)V
 	public fun setOverflow (Ljava/lang/String;)V
 	public fun setOverflowInset (IIII)V
+	public fun setPointerEvents (Lcom/facebook/react/uimanager/PointerEvents;)V
 	public fun setRemoveClippedSubviews (Z)V
 	public fun setTranslucentBackgroundDrawable (Landroid/graphics/drawable/Drawable;)V
 	public fun updateClippingRect ()V

packages/react-native/ReactAndroid/src/main/java/com/facebook/react/views/view/ReactViewGroup.java

@@ -673,7 +673,7 @@ protected void dispatchSetPressed(boolean pressed) {
     // to it's children.
   }
 
-  /*package*/ void setPointerEvents(PointerEvents pointerEvents) {
+  public void setPointerEvents(PointerEvents pointerEvents) {
     mPointerEvents = pointerEvents;
   }