build: Update GutenbergKit to v0.14.0 (#25410)

* build: Update GutenbergKit to v0.14.0

* feat: enable network fallback mode in GutenbergKit editor

Enable automatic network fallback mode so the editor gracefully
degrades to the bundled editor when the device is offline, rather
than showing a fatal error.

Author: dcalhoun

Modules/Package.resolved

@@ -55,7 +55,7 @@ let package = Package(
         .package(url: "https://github.com/wordpress-mobile/wpxmlrpc", from: "0.9.0"),
         .package(url: "https://github.com/wordpress-mobile/NSURL-IDN", revision: "b34794c9a3f32312e1593d4a3d120572afa0d010"),
         .package(url: "https://github.com/zendesk/support_sdk_ios", from: "8.0.3"),
-        .package(url: "https://github.com/wordpress-mobile/GutenbergKit", revision: "v0.14.0-alpha.0"),
+        .package(url: "https://github.com/wordpress-mobile/GutenbergKit", from: "0.14.0"),
         // We can't use wordpress-rs branches nor commits here. Only tags work.
         .package(url: "https://github.com/Automattic/wordpress-rs", revision: "alpha-20260313"),
         .package(

Modules/Package.swift

@@ -56,6 +56,7 @@ extension EditorConfiguration {
             .setShouldUsePlugins(Self.shouldEnablePlugins(for: blog, appPassword: applicationPassword))
             .setLocale(WordPressComLanguageDatabase.shared.deviceLanguage.slug)
             .setEnableNetworkLogging(ExtensiveLogging.enabled)
+            .setNetworkFallbackMode(.automatic)
 
         // Build editor assets endpoint
         var editorAssetsEndpoint = siteApiRoot