Update submodule: Dynamic file dialog filter

Update submodule reference to include dynamic file dialog filter functionality.

Changes:
- File dialog filter now reads custom extensions from sandboxtest-config.ini
- Custom extensions appear in filter before default script extensions
- Order: base executables → custom (sorted) → defaults (ahk, au3, py, js)

Example:
User adds: lua=Std-Lua, tcl=MyTcl to INI
File dialog shows: *.exe;...;*.lua;*.tcl;*.ahk;*.au3;*.py;*.js

Benefits:
- Users can add custom extensions without code changes
- Automatic discovery on file dialog open
- Backward compatible with existing configurations

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

Author: KnifMelti