gl-renderer: Don't leak transformed region

Unfortunately, our y_invert helper also forgot to free the region it
transformed to. Clean up our allocation before we exit.

Signed-off-by: Daniel Stone <daniels@collabora.com>
2 jobs for gl-renderer-y-invert-helper-fixes in 1 minute and 18 seconds (queued for 1 second)
Status Job ID Name Coverage
  Container Prep
passed #417669
container_prep

00:00:23

 
  Build
passed #417670
build-native-meson

00:00:54