chore: update ci config

.circleci/config.yml

@@ -56,11 +56,7 @@ jobs:
       - restore_cache:
           keys:
           - dist-{{ .Revision }}
-      # semantic-release requires node >= 8.3 and the latest version available at circle-ci is node 7.10
-      # they recommend using npx to install node 8 and then use it to run semantic-release (https://github.com/semantic-release/semantic-release/blob/caribou/docs/support/node-version.md)
-      # since node 7.10 comes with npm 4 and npx is only available on npm >= 5 it has to be installed first, and run from the local node_modules
-      # TODO: we should replace the following line with just "npm run semantic-release" once there's a node:8 image available at circle-ci
-      - run: npm install --save-dev npx && node_modules/npx/index.js -p node@8 -c "npx semantic-release"
+      - run: npm run semantic-release
 
 workflows:
   version: 2