Update babel monorepo to v7.10.4

Author: renovate-bot

package.json

@@ -31,12 +31,12 @@
   },
   "dependencies": {},
   "devDependencies": {
-    "@babel/cli": "7.10.3",
-    "@babel/core": "7.10.3",
-    "@babel/plugin-proposal-async-generator-functions": "7.10.3",
-    "@babel/polyfill": "7.10.1",
-    "@babel/preset-env": "7.10.3",
-    "@babel/register": "7.10.3",
+    "@babel/cli": "7.10.4",
+    "@babel/core": "7.10.4",
+    "@babel/plugin-proposal-async-generator-functions": "7.10.4",
+    "@babel/polyfill": "7.10.4",
+    "@babel/preset-env": "7.10.4",
+    "@babel/register": "7.10.4",
     "ava": "3.9.0",
     "coveralls": "3.1.0",
     "esdoc": "1.1.0",