feat: upgrade Flutter version to 3.38 (#1256)

ui/flutter/android/app/src/debug/AndroidManifest.xml

@@ -1,8 +1,7 @@
-<manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="com.gopeed.gopeed">
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
     <!-- The INTERNET permission is required for development. Specifically,
          the Flutter tool needs it to communicate with the running application
          to allow setting breakpoints, to provide hot reload, etc.
     -->
-    <uses-permission android:name="android.permission.INTERNET"/>
-</manifest>
+    <uses-permission android:name="android.permission.INTERNET" />
+</manifest>