Update libgtk in debian sysroot

[iliabylich]

Hello

I started looking at electron/electron#33690 and turns out there's already libgtk4{-dev} package in the sysroot but it's outdated.

Chromium uses a constant from GTK4 called GSK_SUBSURFACE_NODE here (and it was just the first thing that caused compilation to fail). However it's only available in GTK 4.14 while the snapshot contains 4.8.

Is it possible to bump it? From what I see on the Debian server there are version 4.8.3 -> 4.16.12 -> 4.17.1 and the first matching version (4.16) is somewhat new. I'm not familiar with Electron's policy, do you guys always match libs that Chromium requires? Or would it be a breaking change?

If it can be upgraded I can send a PR myself.

[codebytere]

hey @iliabylich - we match Chromium's versions per policy as of now. One potential path you could take is to submit a CL to Chromium for them to update it, and we could then roll to match that. Upstream logic can be found here.