OpenGL: Raise Minimum SSBO Bindings to 12.

Draw manager requires a minimum of 12 bind points.

Pull Request: https://projects.blender.org/blender/blender/pulls/115229

source/blender/gpu/opengl/gl_backend.cc

@@ -189,7 +189,7 @@ void GLBackend::platform_init()
     glGetIntegerv(GL_MAX_COMPUTE_SHADER_STORAGE_BLOCKS, &max_ssbo_binds_compute);
     GLint max_ssbo_binds = min_iii(
         max_ssbo_binds_vertex, max_ssbo_binds_fragment, max_ssbo_binds_compute);
-    if (max_ssbo_binds < 8) {
+    if (max_ssbo_binds < 12) {
       std::cout << "Warning: Unsupported platform as it supports max " << max_ssbo_binds
                 << " SSBO binding locations\n";
       support_level = GPU_SUPPORT_LEVEL_UNSUPPORTED;