Fix shader 8-bit and 16-bit STS/STG (#2741)

* Fix 8 and 16-bit STG

* Fix 8 and 16-bit STS

* Shader cache version bump

Ryujinx.Graphics.Gpu/Shader/ShaderCache.cs

@@ -40,7 +40,7 @@ namespace Ryujinx.Graphics.Gpu.Shader
         /// <summary>
         /// Version of the codegen (to be changed when codegen or guest format change).
         /// </summary>
-        private const ulong ShaderCodeGenVersion = 2750;
+        private const ulong ShaderCodeGenVersion = 2741;
 
         // Progress reporting helpers
         private volatile int _shaderCount;