Bump @babel/preset-env from 7.9.5 to 7.12.7

Bumps [@babel/preset-env](https://github.com/babel/babel/tree/HEAD/packages/babel-preset-env) from 7.9.5 to 7.12.7.
- [Release notes](https://github.com/babel/babel/releases)
- [Changelog](https://github.com/babel/babel/blob/main/CHANGELOG.md)
- [Commits](https://github.com/babel/babel/commits/v7.12.7/packages/babel-preset-env)

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

package.json

@@ -38,7 +38,7 @@
   },
   "devDependencies": {
     "@babel/core": "7.9.0",
-    "@babel/preset-env": "7.9.5",
+    "@babel/preset-env": "7.12.7",
     "babel-jest": "25.3.0",
     "copy-webpack-plugin": "5.1.1",
     "coveralls": "3.0.11",