WSLtty: download ældre versioner

Updated to cygwin 3.7.0-0.287.g3a03874f73db, fixing display corruption by data loss after ^O (mintty/mintty#1332).

Workaround for corrupted display (mintty/mintty#1332)

- Update to Mintty 3.8.0.
- Derive default icon from WSL launcher shortcut (mintty/wsltty#110).
Revised WSL launching
This release drops the wslbridge gateways by default, since there were
notoriously frequent cases where they would have failed to work.
Launching WSL with the Windows built-in default launcher, however,
used to be a crook solution as it obstructed transparent terminal operation
by hooking the Windows conhost layer into the workflow.
This deficiency can now be compensated by patching an updated ʻconhost.exeʻ
into Windows; see instructions about ʻconhostʻ in the mintty wiki
Tips.

- Update to mintty 3.7.8.
- Revise command-line launch scripts, support arguments (#365).

Updated to mintty 3.7.7

Update to wslbridge2 v0.13
- replace preliminary WSL V2 patch (#361)
Portable Installation & Configuration
- support update installation into selected folder (#359)
- tweak portable install; support renaming installation dir (~#359)
- provide script to refresh shortcut icon after renaming installation dir (~#359)
- support portable installation into folder with space (#362)
- portable installation supports Unicode folder names

Update to mintty 3.7.6.
- Reenable WSL 2, using rluetzner's patch (#356).
- Revised box drawing, now self-drawn (#353).
- Skip config files in $HOME if $HOME does not exist (#351).

Updated to mintty 3.7.4, fixing sticky Ctrl keyboard issue after revised AltGr handling.

Updated to mintty 3.7.3

Updated to mintty 3.7.2
- Implemented fallback to legacy wslbridge for old Windows versions (#350).

Updated to mintty 3.7.1
Fix #346, #348.
Note: the .cab file (intended as a last resort in case false virus positives block the installers) could not be uploaded to github. If needed, I'll provide it otherwise or replace it with a zip file.

- fixed #324

Updated to wslbridge2 0.10, in order to fix #302 for Windows 11

• Updated to mintty 3.6.0.
• Portable installer (#306).
• Silent installer, for winget package (microsoft/winget-pkgs#40573).
• Installer: improve installation directory parameter handling (#304), also for scoop package.
• Support in wslbridge2 for new lifted WSL service.