Bump revision.
diff --git a/glslang/Include/revision.h b/glslang/Include/revision.h
index 9a1b29b..7719a9f 100644
--- a/glslang/Include/revision.h
+++ b/glslang/Include/revision.h
@@ -1,3 +1,3 @@
 // This header is generated by the make-revision script.
 
-#define GLSLANG_PATCH_LEVEL 3667
+#define GLSLANG_PATCH_LEVEL 3723