Add node version output for debugging

.circleci/config.yml

@@ -104,7 +104,7 @@ jobs:
           key: dependency-cache-{{ checksum "yarn.lock" }}
       - run:
           name: yarn install
-          command: 'yarn install --pure-lockfile --no-progress'
+          command: 'node --version && yarn install --pure-lockfile --no-progress'
           no_output_timeout: 15m
       - save_cache:
           key: dependency-cache-{{ checksum "yarn.lock" }}