bump CI node version

yyx990803 · yyx990803 · commit 029ec612ebd1 · 2017-10-01T23:33:41.000-04:00
diff --git a/appveyor.yml b/appveyor.yml
@@ -1,7 +1,7 @@
 environment:
   matrix:
-    - nodejs_version: "5"
     - nodejs_version: "6"
+    - nodejs_version: "8"
 
 install:
   - ps: Install-Product node $env:nodejs_version
diff --git a/circle.yml b/circle.yml
@@ -1,3 +1,3 @@
 machine:
   node:
-    version: 5
+    version: 6
