Update babel monorepo to v7.9.6

Author: renovate-bot

package.json

@@ -32,10 +32,10 @@
   "dependencies": {},
   "devDependencies": {
     "@babel/cli": "7.8.4",
-    "@babel/core": "7.9.0",
+    "@babel/core": "7.9.6",
     "@babel/plugin-proposal-async-generator-functions": "7.8.3",
     "@babel/polyfill": "7.8.7",
-    "@babel/preset-env": "7.9.5",
+    "@babel/preset-env": "7.9.6",
     "@babel/register": "7.9.0",
     "ava": "3.8.1",
     "coveralls": "3.1.0",