### Godot version

4.1.1

### System information

windows 11, mobile renderer

### Issue description

On Mobile Vulkan renderer, the clear color is 50% lighter than expected

See steps to reproduce and Minimal reproduction project below.

The box and background have the same color on Forward+ and compatibility, but not on Mobile
happens also in runtime on exported project, not only in editor preview

Images of the same scene from
compatibility:
![compatibility](https://github.com/godotengine/godot/assets/11915378/a874fa86-c16f-43ef-aed7-c2066b770ac1)
Forward+:
![forward](https://github.com/godotengine/godot/assets/11915378/e416f9a6-dfd4-4c47-bbc2-b552ca58f83c)
Mobile:
![mobile](https://github.com/godotengine/godot/assets/11915378/e28e2db8-f7c3-47e2-8c0a-44ce937c9270)


### Steps to reproduce

 - add a CSGBox3D with "unshaded" shading, and albedo of #545454
 - add environment with Background = Custom color and color of #545454

Box and background are not the same color

### Minimal reproduction project

[bg_color.zip](https://github.com/godotengine/godot/files/12174822/bg_color.zip)

if (use_msaa) {
				
				pass.resolve_attachments.push_back(color_buffer_id);
			}
			passes.push_back(pass);
			
			RID render_target = render_buffers->get_render_target();
			ERR_FAIL_COND_V(render_target.is_null(), RID());
			RID target_buffer;
			if (texture_storage->render_target_get_msaa(render_target) == RS::VIEWPORT_MSAA_DISABLED) {
				target_buffer = texture_storage->render_target_get_rd_texture(render_target);
			} else {
				target_buffer = texture_storage->render_target_get_rd_texture_msaa(render_target);
			}
			ERR_FAIL_COND_V(target_buffer.is_null(), RID());
			int target_buffer_id = textures.size();
			textures.push_back(target_buffer); 
			RD::FramebufferPass blit_pass;
			blit_pass.input_attachments.push_back(color_buffer_id); 
			blit_pass.color_attachments.push_back(target_buffer_id); 
			
			passes.push_back(blit_pass);
			return FramebufferCacheRD::get_singleton()->get_cache_multipass(textures, passes, view_count);
		} break;
		default:
			break;
	};
	return RID();
}
RID RenderForwardMobile::reflection_probe_create_framebuffer(RID p_color, RID p_depth) {