build: Node.js@8.12

Author: dougwilson

.travis.yml

@@ -10,7 +10,7 @@ node_js:
   - "5.12"
   - "6.14"
   - "7.10"
-  - "8.11"
+  - "8.12"
   - "9.11"
   - "10.8"
 sudo: false

appveyor.yml

@@ -10,13 +10,15 @@ environment:
     - nodejs_version: "5.12"
     - nodejs_version: "6.14"
     - nodejs_version: "7.10"
-    - nodejs_version: "8.11"
+    - nodejs_version: "8.12"
     - nodejs_version: "9.11"
     - nodejs_version: "10.8"
 cache:
   - node_modules
 install:
-  - ps: Install-Product node $env:nodejs_version
+  - ps: >-
+      try { Install-Product node $env:nodejs_version -ErrorAction Stop }
+      catch { Update-NodeJsInstallation (Get-NodeJsLatestBuild $env:nodejs_version) }
   - npm config set shrinkwrap false
   - npm rm --save-dev benchmark beautify-benchmark & ver > nul
   - if "%nodejs_version%" equ "0.8" npm config set strict-ssl false