Vulkan: Cache delegate for EndRenderPass (#6132)

This prevents a small allocation each time this method is called. This is a top 3 SOH allocation during gameplay in most games, and eliminating it is pretty free.

src/Ryujinx.Graphics.Vulkan/PipelineBase.cs

@@ -30,6 +30,7 @@ namespace Ryujinx.Graphics.Vulkan
         public readonly PipelineCache PipelineCache;
 
         public readonly AutoFlushCounter AutoFlush;
+        public readonly Action EndRenderPassDelegate;
 
         protected PipelineDynamicState DynamicState;
         private PipelineState _newState;
@@ -92,6 +93,7 @@ namespace Ryujinx.Graphics.Vulkan
             Device = device;
 
             AutoFlush = new AutoFlushCounter(gd);
+            EndRenderPassDelegate = EndRenderPass;
 
             var pipelineCacheCreateInfo = new PipelineCacheCreateInfo
             {