[opencsg] Update to 1.8.1 (#44526)

ports/opencsg/portfile.cmake

@@ -6,7 +6,7 @@ vcpkg_from_github(
     OUT_SOURCE_PATH SOURCE_PATH
     REPO floriankirsch/OpenCSG
     REF "opencsg-${VERSION_CSG}-release"
-    SHA512 ded016e6340b2dca479765bd638d353b1c4605cf7b579ab412cf8d789d56ce307a86576fc45307f87c7ea756bb9aff5db25c8a819352058ce4f7cf3e24056a07
+    SHA512 9c674553ff0bccd35b34475019f53f4dda900c4b26635e6f52871b81e974a9c6319891c1d42e387606ccb0a890dcbb286baa424ce240f78493ef6f920c0bcb3a
     HEAD_REF master
     PATCHES
         illegal_char.patch

ports/opencsg/vcpkg.json

@@ -1,6 +1,6 @@
 {
   "name": "opencsg",
-  "version": "1.7.0",
+  "version": "1.8.1",
   "description": "OpenCSG is a library that does image-based CSG rendering using OpenGL. OpenCSG is written in C++ and supports most modern graphics hardware using Microsoft Windows or the Linux operating system.",
   "homepage": "https://github.com/floriankirsch/OpenCSG",
   "license": "GPL-2.0-or-later",

versions/baseline.json

@@ -6757,7 +6757,7 @@
       "port-version": 3
     },
     "opencsg": {
-      "baseline": "1.7.0",
+      "baseline": "1.8.1",
       "port-version": 0
     },
     "openctm": {

versions/o-/opencsg.json

@@ -1,5 +1,10 @@
 {
   "versions": [
+    {
+      "git-tree": "1407ec9df49f94d7feaef6172b75495e910b6c76",
+      "version": "1.8.1",
+      "port-version": 0
+    },
     {
       "git-tree": "bfb8eb4d7ce067837d16f98141766f4ba980b50c",
       "version": "1.7.0",