[flutter] Upgrade and require Flutter 3.5.10

spine-flutter/example/pubspec.lock

@@ -212,4 +212,4 @@ packages:
     version: "0.7.4"
 sdks:
   dart: ">=3.0.0-417 <4.0.0"
-  flutter: ">=3.10.1"
+  flutter: ">=3.10.5"

spine-flutter/example/pubspec.yaml

@@ -5,7 +5,7 @@ version: 1.0.0+1
 
 environment:
   sdk: '>=2.17.6 <4.0.0'
-  flutter: ">=3.10.1"
+  flutter: ">=3.10.5"
 
 dependencies:
   flutter:

spine-flutter/pubspec.yaml

@@ -8,7 +8,7 @@ documentation: https://esotericsoftware.com/spine-flutter
 
 environment:
   sdk: '>=2.17.6 <4.0.0'
-  flutter: ">=3.10.1"
+  flutter: ">=3.10.5"
 
 dependencies:
   flutter: