Enable Node.js v23 testing after nodejs#979 or similar.

Author: cclauss

appveyor.yml

@@ -14,7 +14,7 @@ image:
 environment:
   NODE_GYP_FORCE_PYTHON: C:\Python39-x64\python.exe
   matrix:  # Test against these versions of Io.js and Node.js.
-    - nodejs_version: "23"
+    # - nodejs_version: "23"  # Enable after nodejs/nan#979 or similar.
     - nodejs_version: "22"
     - nodejs_version: "22"
       NODE_GYP_FORCE_PYTHON: C:\Python312-x64\python.exe