chore(deps): Update required flutter version to 2.9.3

Author: G-Ray

app/pubspec.lock

@@ -1502,4 +1502,4 @@ packages:
     version: "0.0.3+1"
 sdks:
   dart: ">=3.7.0-0 <4.0.0"
-  flutter: ">=3.29.2"
+  flutter: ">=3.29.3"

app/pubspec.yaml

@@ -20,7 +20,7 @@ version: 0.12.0+4
 
 environment:
   sdk: ^3.5.3
-  flutter: 3.29.2
+  flutter: 3.29.3
 
 # Dependencies specify other packages that your package needs in order to work.
 # To automatically upgrade your package dependencies to the latest versions