RCTTurboModuleManager | Fix narrowing conversion. (#39829)

Summary:
Pull Request resolved: #39829

Changelog:
    [iOS][Fixed] - Fixed narrowing conversion compilation error.

Reviewed By: sodastsai

Differential Revision: D49948385

fbshipit-source-id: 84385b90c1998d99980f1afd8b62e94202301afe

Author: Florian Sauer

packages/react-native/ReactCommon/react/nativemodule/core/platform/ios/ReactCommon/RCTTurboModuleManager.mm

@@ -375,7 +375,7 @@ - (instancetype)initWithBridgeProxy:(RCTBridgeProxy *)bridgeProxy
         .jsInvoker = _jsInvoker,
         .nativeMethodCallInvoker = nativeMethodCallInvoker,
         .isSyncModule = methodQueue == RCTJSThread,
-        .shouldVoidMethodsExecuteSync = RCTTurboModuleSyncVoidMethodsEnabled(),
+        .shouldVoidMethodsExecuteSync = (bool)RCTTurboModuleSyncVoidMethodsEnabled(),
     };
 
     auto turboModule = [(id<RCTTurboModule>)module getTurboModule:params];
@@ -438,7 +438,7 @@ - (instancetype)initWithBridgeProxy:(RCTBridgeProxy *)bridgeProxy
       .jsInvoker = _jsInvoker,
       .nativeMethodCallInvoker = std::move(nativeMethodCallInvoker),
       .isSyncModule = methodQueue == RCTJSThread,
-      .shouldVoidMethodsExecuteSync = RCTTurboModuleSyncVoidMethodsEnabled(),
+      .shouldVoidMethodsExecuteSync = (bool)RCTTurboModuleSyncVoidMethodsEnabled(),
   };
 
   auto turboModule = std::make_shared<ObjCInteropTurboModule>(params);