fix(macos): fix build break introduced in 2.5.13

[tido64]

Description

Fix build break introduced in #1522

Platforms affected

• Android
• iOS
• macOS
• Windows

Test plan

Enable single app mode:

diff --git a/example/app.json b/example/app.json
index ef69fa7..8e4ddc7 100644
--- a/example/app.json
+++ b/example/app.json
@@ -2,10 +2,12 @@
   "$schema": "https://raw.githubusercontent.com/microsoft/react-native-test-app/trunk/schema.json",
   "name": "Example",
   "displayName": "Example",
+  "singleApp": "example-app",
   "components": [
     {
       "appKey": "Example",
-      "displayName": "App"
+      "displayName": "App",
+      "slug": "example-app"
     },
     {
       "appKey": "Example",

Build and run:

pod install --project-directory=macos
yarn macos

In a separate terminal, start the dev server:

yarn start