fix: increase minimum flutter version to 3.24.5 (#240)

Author: bryanoltman

shorebird_code_push/pubspec.yaml

@@ -6,7 +6,7 @@ repository: https://github.com/shorebirdtech/updater/tree/main/shorebird_code_pu
 
 environment:
   sdk: ">=3.5.4 <4.0.0"
-  flutter: ">=3.24.4"
+  flutter: ">=3.24.5"
 
 dependencies:
   ffi: ^2.0.2