lower_int64_to_int32: Add missing include

src/shader_recompiler/ir_opt/lower_int64_to_int32.cpp

@@ -10,6 +10,7 @@
 #include "shader_recompiler/frontend/ir/ir_emitter.h"
 #include "shader_recompiler/frontend/ir/program.h"
 #include "shader_recompiler/frontend/ir/value.h"
+#include "shader_recompiler/ir_opt/passes.h"
 
 namespace Shader::Optimization {
 namespace {