ci: cache Cypress installation

yyx990803 · yyx990803 · commit 7c74be79edd5 · 2018-06-05T17:00:39.000-04:00
diff --git a/.circleci/config.yml b/.circleci/config.yml
@@ -21,6 +21,7 @@ jobs:
           paths:
             - node_modules/
             - ~/.cache/yarn
+            - ~/.cache/Cypress
       - persist_to_workspace:
           root: ~/project
           paths:
