Bump @babel/preset-env from 7.9.5 to 7.9.6

Bumps [@babel/preset-env](https://github.com/babel/babel) from 7.9.5 to 7.9.6.
- [Release notes](https://github.com/babel/babel/releases)
- [Changelog](https://github.com/babel/babel/blob/master/CHANGELOG.md)
- [Commits](babel/babel@v7.9.5...v7.9.6)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

package.json

@@ -11,7 +11,7 @@
   "license": "MIT",
   "devDependencies": {
     "@babel/core": "^7.9.0",
-    "@babel/preset-env": "^7.9.5",
+    "@babel/preset-env": "^7.9.6",
     "@babel/register": "^7.9.0",
     "@wordpress/eslint-plugin": "^5.1.0",
     "babel-eslint": "^10.1.0",