Update AppVeyor to new nodejs platforms (#422)

Author: absurdfarce

ci/appveyor.yml

@@ -2,11 +2,9 @@ environment:
   appveyor_build_worker_cloud: gce
   ci_type: ci_unit_appveyor
   matrix:
-    - nodejs_version: 8
-    - nodejs_version: 10
-      CCM_VERSION: 3.11.4
-      ci_type: ci_appveyor
-    - nodejs_version: 12
+    - nodejs_version: 16
+    - nodejs_version: 18
+    - nodejs_version: 20
 image: Visual Studio 2017
 platform:
   - x64

package.json

@@ -47,8 +47,8 @@
     "integration_short": "./node_modules/.bin/mocha test/integration/short -R spec -t 5000 --recursive",
     "integration_long": "./node_modules/.bin/mocha test/integration/long -R spec -t 5000 --recursive",
     "ci_jenkins": "./node_modules/.bin/mocha test/unit test/integration/short --recursive -R mocha-jenkins-reporter --exit",
-    "ci_appveyor": "./node_modules/.bin/mocha test/unit test/integration/short --recursive -R mocha-appveyor-reporter --exit",
-    "ci_unit_appveyor": "./node_modules/.bin/mocha test/unit --recursive -R mocha-appveyor-reporter --exit",
+    "ci_appveyor": ".\\\"node_modules/.bin/mocha\" test/unit test/integration/short --recursive -R mocha-appveyor-reporter --exit",
+    "ci_unit_appveyor": ".\\\"node_modules/.bin/mocha\" test/unit --recursive -R mocha-appveyor-reporter --exit",
     "server_api": "./node_modules/.bin/mocha test/integration/short -g '@SERVER_API' --recursive --exit",
     "eslint": "eslint lib test"
   },