buggy opengl accelerator for gtk4

[Chilledheart]

yass: ../cairo-1.18.0/src/cairo-hash.c:217: _cairo_hash_table_destroy: Assertion `hash_table->live_entries == 0' failed.
*** SIGABRT received at time=1719544066 on cpu 10 ***
PC: @     0x7f401fa96cec  (unknown)  (unknown)
    @     0x55d0de2f195a        160  absl::AbslFailureSignalHandler()
    @     0x7f401fa46390    7588944  (unknown)
    @     0x7f401f13c960  (unknown)  (unknown)
[1]    6244 IOT instruction  GDK_DEBUG=vulkan-disable ./yass -logtostderr

[Chilledheart]

  // buggy opengl accelerator for gtk4 see #1027
  // disable opengl accelerator for now
  if (getenv("GDK_DEBUG") == nullptr && getenv("GSK_RENDERER") == nullptr) {
    setenv("GSK_RENDERER", "cairo", 1);
  }

[Chilledheart]

Newer gtk4 (from 4.13.8) has something like gsk: Don't use gpu renderers with llvmpipe GNOME/gtk@6c4739a2f16