Update babel-jest, version CI yarn cache key

Author: ide

.circleci/config.yml

@@ -10,12 +10,12 @@ jobs:
           name: Install apt Packages
           command: sudo apt-get --yes install libpcap-dev
       - restore_cache:
-          key: yarn-cache
+          key: v1-yarn-cache
       - run:
           name: Install npm Packages
           command: yarn --pure-lockfile
       - save_cache:
-          key: yarn-cache
+          key: v1-yarn-cache
           paths:
             - ~/.cache/yarn
       - run:

package.json

@@ -55,7 +55,7 @@
   "devDependencies": {
     "babel-core": "^6.26.0",
     "babel-eslint": "^7.2.3",
-    "babel-jest": "^20.0.3",
+    "babel-jest": "^21.0.2",
     "babel-plugin-add-module-exports": "^0.2.1",
     "babel-plugin-transform-class-properties": "^6.24.1",
     "babel-plugin-transform-es2015-modules-commonjs": "^6.26.0",