Fix deferred loading components

deferred_components_loading_units.yaml

@@ -336,6 +336,7 @@ loading-units:
       - package:gallery/demos/cupertino/cupertino_context_menu_demo.dart
       - package:gallery/demos/cupertino/cupertino_navigation_bar_demo.dart
       - package:gallery/demos/cupertino/cupertino_picker_demo.dart
+      - package:gallery/demos/cupertino/cupertino_scrollbar_demo.dart
       - package:gallery/demos/cupertino/cupertino_search_text_field_demo.dart
       - package:gallery/demos/cupertino/cupertino_segmented_control_demo.dart
       - package:gallery/demos/cupertino/cupertino_slider_demo.dart

pubspec.lock

@@ -105,7 +105,7 @@ packages:
       name: coverage
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.3.1"
+    version: "1.5.0"
   crypto:
     dependency: transitive
     description:
@@ -296,7 +296,7 @@ packages:
       name: matcher
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.12.11"
+    version: "0.12.12"
   material_color_utilities:
     dependency: transitive
     description:
@@ -651,21 +651,21 @@ packages:
       name: test
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.21.1"
+    version: "1.21.4"
   test_api:
     dependency: transitive
     description:
       name: test_api
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.4.9"
+    version: "0.4.12"
   test_core:
     dependency: transitive
     description:
       name: test_core
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.4.13"
+    version: "0.4.16"
   typed_data:
     dependency: transitive
     description:
@@ -742,7 +742,7 @@ packages:
       name: vm_service
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "8.3.0"
+    version: "9.0.0"
   watcher:
     dependency: transitive
     description:

pubspec.yaml

@@ -5,7 +5,7 @@ version: 2.10.0+021000
 
 environment:
   flutter: ^3.1.0-0 # Kept relatively close to master channel version
-  sdk: '>=2.17.0 <3.0.0'
+  sdk: ">=2.17.0 <3.0.0"
 
 dependencies:
   flutter: