gl renderer: Render recording surface untransformed

Cairo can't handle the y flip apparently.

Fixes #1906
10 jobs for master in 17 minutes and 54 seconds (queued for 2 seconds)
Status Job ID Name Coverage
  Build
passed #304737
fedora-x86_64

00:04:02

passed #304738
win32
msys2-mingw32

00:05:34

 
  Flatpak
manual #304739
allowed to fail manual
flatpak-manual:demo
manual #304743
allowed to fail manual
flatpak-manual:icon-browser
manual #304741
allowed to fail manual
flatpak-manual:widget-factory
passed #304740
flatpak-master:demo

00:05:10

passed #304744
flatpak-master:icon-browser

00:04:30

passed #304742
flatpak-master:widget-factory

00:05:49

 
  Deploy
passed #304745
pages

00:06:29

passed pages:deploy

00:00:01