update node&python version

Author: Almenon

Diff for: appveyor.yml

@@ -5,20 +5,17 @@ branches:
     - gh-pages
 
 image:
-- Visual Studio 2017
-- Ubuntu2004
+- Visual Studio 2022
+- Ubuntu2204
 
 environment:
   matrix:
 
-    - nodejs_version: "14"
-      PYTHON: "C:\\Python37-x64"
-
-    - nodejs_version: "16"
-      PYTHON: "C:\\Python37-x64"
-      
     - nodejs_version: "18"
-      PYTHON: "C:\\Python37-x64"
+      PYTHON: "C:\\Python312-x64"
+
+    - nodejs_version: "20"
+      PYTHON: "C:\\Python312-x64"
 
 install:
   - cmd: powershell Install-Product node $env:nodejs_version