Fix #113310: Python gpu.state.scissor_test_set Not Updating State

When using scissor_test_set the framebuffer wasn't marked dirty and
would not always translate the start to actual driver commands.

Pull Request: https://projects.blender.org/blender/blender/pulls/113642

source/blender/gpu/intern/gpu_framebuffer_private.hh

@@ -185,6 +185,7 @@ class FrameBuffer {
   inline void scissor_test_set(bool test)
   {
     scissor_test_ = test;
+    dirty_state_ = true;
   }
 
   inline void viewport_get(int r_viewport[4]) const