Update babel monorepo

Author: renovate-bot

package.json

@@ -20,10 +20,10 @@
     "nodemailer": "^6.1.1"
   },
   "devDependencies": {
-    "@babel/cli": "7.4.3",
-    "@babel/core": "7.4.3",
-    "@babel/node": "7.2.2",
-    "@babel/plugin-transform-runtime": "^7.4.3",
-    "@babel/preset-env": "7.4.3"
+    "@babel/cli": "7.6.0",
+    "@babel/core": "7.6.0",
+    "@babel/node": "7.6.1",
+    "@babel/plugin-transform-runtime": "7.6.0",
+    "@babel/preset-env": "7.6.0"
   }
 }