fix: Ensure compatibility with new React Native version

Author: SHIVA-juspay

android/src/main/java/in/juspay/hypersdkreact/HyperSdkReactModule.java

@@ -370,6 +370,18 @@ public View getMerchantView(ViewGroup viewGroup, MerchantViewType merchantViewTy
         }
     }
 
+    private ReactInstanceManager getReactInstanceManagerFromHost(Object reactHost) {
+        if (reactHost == null) {
+            return null;
+        }
+        try {
+            Method getReactInstanceManagerMethod = reactHost.getClass().getMethod("getReactInstanceManager");
+            return (ReactInstanceManager) getReactInstanceManagerMethod.invoke(reactHost);
+        } catch (Exception e) {
+            return null;
+        }
+    }
+
     private void createHyperService(@Nullable String tenantId, @Nullable String clientId) {
         FragmentActivity activity = (FragmentActivity) getCurrentActivity();
         if (activity == null) {
@@ -381,11 +393,22 @@ private void createHyperService(@Nullable String tenantId, @Nullable String clie
                     "activity is null");
             return;
         }
-        Application app = activity.getApplication();
-        if (app instanceof ReactApplication) {
-            this.app = ((ReactApplication) app);
-            reactInstanceManager = ((ReactApplication) app).getReactNativeHost().getReactInstanceManager();
+        Application application = activity.getApplication();
+        if (application instanceof ReactApplication) {
+            this.app = ((ReactApplication) application);
+            if (newArchEnabled) {
+                try {
+                    Method getReactHostMethod = app.getClass().getMethod("getReactHost");
+                    Object reactHost = getReactHostMethod.invoke(app);
+                    reactInstanceManager = getReactInstanceManagerFromHost(reactHost);
+                } catch (Exception e) {
+                    reactInstanceManager = app.getReactNativeHost().getReactInstanceManager();
+                }
+            } else {
+                reactInstanceManager = app.getReactNativeHost().getReactInstanceManager();
+            }
         }
+
         if (tenantId != null && clientId != null) {
             hyperServices = new HyperServices(activity, tenantId, clientId);
         } else {