Bump @babel/preset-env from 7.12.7 to 7.12.10

Bumps [@babel/preset-env](https://github.com/babel/babel/tree/HEAD/packages/babel-preset-env) from 7.12.7 to 7.12.10.
- [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/v7.12.10/packages/babel-preset-env)

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package.json

@@ -11,7 +11,7 @@
     "@babel/plugin-proposal-class-properties": "^7.10.1",
     "@babel/plugin-proposal-private-methods": "^7.12.1",
     "@babel/plugin-transform-modules-umd": "^7.12.1",
-    "@babel/preset-env": "^7.12.7",
+    "@babel/preset-env": "^7.12.10",
     "@uupaa/dynamic-import-polyfill": "^1.0.2",
     "autoprefixer": "^9.8.6",
     "babel-loader": "^8.2.2",