Fix synchronous props for PlatformColor on Android (#8687)

## Summary

This PR fixes the following error on Android that happens when trying to
animate color (e.g. `backgroundColor`) using synchronous props mechanism
(with `ANDROID_SYNCHRONOUSLY_UPDATE_UI_PROPS` Reanimated static feature
flag enabled) and passing an instance of `PlatformColor` which is an
object, not an integer:

<img width="441" height="785" alt="Screenshot 2025-12-02 at 12 13 54"
src="https://github.com/user-attachments/assets/9c3cb97b-705d-4456-999c-f701b40ad32f"
/>

## Test plan

Author: tomekzaw

docs/docs-reanimated/docs/guides/feature-flags.md

@@ -132,7 +132,7 @@ When enabled, non-layout styles will be applied using the `synchronouslyUpdateVi
 
 2. The changes are applied via `synchronouslyUpdateViewOnUIThread` are not synchronized with changes applied by `ShadowTree::commit` which may lead to minor inconsistencies of animated styles or animated components in a single animation frame.
 
-Currently, only the following styles can be updated using the fast path: `opacity`, `elevation`, `zIndex`, `backgroundColor`, `tintColor`, `borderRadius` (all sides), `borderColor` (all sides) and `transform` (all transforms). All remaining styles, if present, will be updated via `ShadowTree::commit`.
+Currently, only the following styles can be updated using the fast path: `opacity`, `elevation`, `zIndex`, `backgroundColor` (excluding `PlatformColor`), `tintColor` (excluding `PlatformColor`), `borderColor` (all sides, excluding `PlatformColor`), `borderRadius` (all sides) and `transform` (all transforms). All remaining styles, if present, will be updated via `ShadowTree::commit`.
 
 This feature flag works only on Android and has no effect on iOS. For more details, see [PR #7823](https://github.com/software-mansion/react-native-reanimated/pull/7823).
 

packages/react-native-reanimated/Common/cpp/reanimated/NativeModules/ReanimatedModuleProxy.cpp

@@ -812,9 +812,10 @@ void ReanimatedModuleProxy::performOperations(const bool isTriggeredByEvent) {
 
       for (const auto &[shadowNode, props] : updatesBatch) {
         bool hasOnlySynchronousProps = true;
-        for (const auto &key : props.keys()) {
+        for (const auto &[key, value] : props.items()) {
           const auto keyStr = key.asString();
-          if (!synchronousProps.contains(keyStr)) {
+          if (!synchronousProps.contains(keyStr) ||
+              ((keyStr == "color" || keyStr.find("Color") != std::string::npos) && !value.isInt())) {
             hasOnlySynchronousProps = false;
             break;
           }