Fix appveyor config

Author: bash

appveyor.yml

@@ -1,16 +1,15 @@
 environment:
-  nodejs_version: "10"
+  nodejs_version: "18"
 
 init:
 - git config --global core.autocrlf true
 
 install:
 - ps: Install-Product node $env:nodejs_version
-- npm install
+- npm ci
 
 test_script:
 - node --version
-- yarn --version
-- yarn test
+- npm run test
 
 build: off