fix shadow pass trace (#12977)

# Objective

- shadow pass trace does not work correctly

## Solution

- enable it.

Author: re0312

crates/bevy_internal/Cargo.toml

@@ -15,6 +15,7 @@ trace = [
   "bevy_core_pipeline?/trace",
   "bevy_ecs/trace",
   "bevy_log/trace",
+  "bevy_pbr?/trace",
   "bevy_render?/trace",
   "bevy_hierarchy/trace",
   "bevy_winit?/trace",

crates/bevy_pbr/src/render/light.rs

@@ -1849,8 +1849,7 @@ impl Node for ShadowPassNode {
                 let diagnostics = render_context.diagnostic_recorder();
                 render_context.add_command_buffer_generation_task(move |render_device| {
                     #[cfg(feature = "trace")]
-                    let _shadow_pass_span = info_span!("shadow_pass").entered();
-
+                    let _shadow_pass_span = info_span!("", "{}", view_light.pass_name).entered();
                     let mut command_encoder =
                         render_device.create_command_encoder(&CommandEncoderDescriptor {
                             label: Some("shadow_pass_command_encoder"),