chore: Update flutter_pty dependency to fix Windows script issue

CHANGELOG.md

@@ -52,6 +52,7 @@ toward a 6.3 release.
 + Refactor dataset feature [6.2.3 20240715 gjw]
 + Initial R code and integration of exploration plots [6.2.2 20240715 gjw]
 + Add EXPORT to ImagePage() [6.2.1 20240712 gjw]
++ Fix Windows R console connectivity issue [20240809 Lutra-Fs]
 
 ## 6.2 Dataset Roles, Display Pages.
 

pubspec.yaml

@@ -22,7 +22,11 @@ dependencies:
   file_picker: ^8.0.6
   flutter_gen: ^5.3.1
   flutter_markdown: ^0.7.1
-  flutter_pty: ^0.4.0
+  # flutter_pty: ^4.0.0
+  flutter_pty:
+    git:
+      url: https://github.com/KitasaitamalBlues/flutter_pty.git
+      ref: main
   flutter_riverpod: ^2.4.4
   flutter_svg: ^2.0.7
   intl: ^0.19.0
@@ -36,6 +40,7 @@ dependencies:
   window_manager: ^0.3.5
   xterm: ^4.0.0
 
+
 dev_dependencies:
 
   flutter_launcher_icons: "^0.13.1"