chore: update node versions in ci

.circleci/config.yml

@@ -13,7 +13,7 @@ jobs:
             - v1-npm-{{checksum ".circleci/config.yml"}}
       - run:
           name: Install dependencies
-          command: .circleci/greenkeeper
+          command: yarn
       - run:
           name: Testing
           command: yarn test
@@ -22,10 +22,14 @@ jobs:
           command: |
             ./node_modules/.bin/nyc report --reporter text-lcov > coverage.lcov
             curl -s https://codecov.io/bash | bash
-  node-8:
+  node-12:
     <<: *test
     docker:
-      - image: node:8
+      - image: node:12
+  node-10:
+    <<: *test
+    docker:
+      - image: node:10
   release:
     <<: *test
     steps:
@@ -54,11 +58,13 @@ workflows:
   "@oclif/color":
     jobs:
       - node-latest
-      - node-8
-      - release:
-          context: org-global
-          filters:
-            branches: {only: master}
-          requires:
-            - node-latest
-            - node-8
+      - node-12
+      - node-10
+      # - release:
+      #     context: org-global
+      #     filters:
+      #       branches: {only: master}
+      #     requires:
+      #       - node-latest
+      #       - node-12
+      #       - node-10

appveyor.yml

@@ -1,5 +1,5 @@
 environment:
-  nodejs_version: "9"
+  nodejs_version: "10"
 cache:
   - '%LOCALAPPDATA%\Yarn -> appveyor.yml'
   - node_modules -> yarn.lock