Update babel monorepo

Author: renovate-bot

package.json

@@ -43,8 +43,8 @@
     "webpack": "^4.0.0"
   },
   "devDependencies": {
-    "@babel/cli": "7.6.4",
-    "@babel/plugin-proposal-class-properties": "7.5.5",
+    "@babel/cli": "7.7.5",
+    "@babel/plugin-proposal-class-properties": "7.7.4",
     "@types/jest": "24.0.22",
     "axios-mock-adapter": "1.17.0",
     "babel-core": "7.0.0-bridge.0",