chore: Test with only stable VSCode for fast build in AppVeyor (#400)

Author: edgardmessias

.appveyor.yml

@@ -6,9 +6,9 @@ environment:
   VSCODE_BUILD_VERBOSE: true
 
   matrix:
-    - CODE_VERSION: "1.20.0" # Minimal Version
+    # - CODE_VERSION: "1.20.0" # Minimal Version
     - CODE_VERSION: "*" # Last Stable Version
-    - CODE_VERSION: "insiders" # Insider Version
+    # - CODE_VERSION: "insiders" # Insider Version
 
 cache:
   - node_modules -> package-lock.json