Avoid GC pressure by caching camera profiler tag.

com.unity.render-pipelines.lightweight/LWRP/LightweightPipeline.cs

         List<int> m_LocalLightIndices = new List<int>();
 
         bool m_IsCameraRendering;
+        const string k_CameraProfilerTag = "Render Camera";
 
         public LightweightPipeline(LightweightPipelineAsset asset)
         {
             foreach (Camera camera in cameras)
             {
                 BeginCameraRendering(camera);
-                string renderCameraTag = "Render " + camera.name;
-                CommandBuffer cmd = CommandBufferPool.Get(renderCameraTag);
-                using (new ProfilingSample(cmd, renderCameraTag))
+                CommandBuffer cmd = CommandBufferPool.Get(k_CameraProfilerTag);
+                using (new ProfilingSample(cmd, k_CameraProfilerTag))
                 {
                     CameraData cameraData;
                     InitializeCameraData(camera, out cameraData);