[0.74] Stub com.facebook.react.settings on 0.74

packages/react-native-gradle-plugin/build.gradle.kts

@@ -30,6 +30,10 @@ gradlePlugin {
       id = "com.facebook.react.rootproject"
       implementationClass = "com.facebook.react.ReactRootProjectPlugin"
     }
+    create("react.settings") {
+      id = "com.facebook.react.settings"
+      implementationClass = "com.facebook.react.ReactSettingsPlugin"
+    }
   }
 }
 

packages/react-native-gradle-plugin/src/main/kotlin/com/facebook/react/ReactSettingsPlugin.kt

@@ -0,0 +1,24 @@
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+package com.facebook.react
+
+import org.gradle.api.Plugin
+import org.gradle.api.initialization.Settings
+
+/**
+ * This is a stub of the com.facebook.react.settings plugin.
+ * 
+ * The plugin got added in 0.75, but to make it easier for 0.74 users to upgrade to 0.75, we're
+ * creating a stub plugin that does nothing. This way, users can include a `id("com.facebook.react.settings")`
+ * in their settings.gradle file without causing a build failure on 0.74.
+ */
+class ReactSettingsPlugin : Plugin<Settings> {
+  override fun apply(settings: Settings) {
+    // Do nothing, just register the plugin.
+  }
+}