More CI fixes

Author: brianquinlan

.github/workflows/cupertino.yml

@@ -31,7 +31,7 @@ jobs:
       matrix:
         # Test on the minimum supported flutter version and the latest
         # version.
-        flutter-version: ["3.22.0", "any"]
+        flutter-version: ["3.24.0", "any"]
     steps:
       - uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332
       - uses: subosito/flutter-action@44ac965b96f18d999802d4b807e3256d5a3f9fa1

.github/workflows/dart.yml

@@ -8,7 +8,7 @@ publish_to: no
 
 environment:
   sdk: ^3.4.0
-  flutter: '>=3.22.0' # If changed, update test matrix.
+  flutter: '>=3.24.0' # If changed, update test matrix.
 
 dependencies:
   async: ^2.5.0

pkgs/cupertino_http/pubspec.yaml

@@ -6,7 +6,7 @@ repository: https://github.com/dart-lang/http/tree/master/pkgs/web_socket
 version: 0.1.6
 
 environment:
-  sdk: ^3.3.0
+  sdk: ^3.4.0
 
 dependencies:
   web: '>=0.5.0 <2.0.0'