Bump @babel/core from 7.12.3 to 7.12.7 (#15205)

Bumps [@babel/core](https://github.com/babel/babel/tree/HEAD/packages/babel-core) from 7.12.3 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-core)

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package.json

@@ -59,7 +59,7 @@
   },
   "private": true,
   "dependencies": {
-    "@babel/core": "^7.12.3",
+    "@babel/core": "^7.12.7",
     "@babel/plugin-proposal-class-properties": "^7.8.3",
     "@babel/plugin-proposal-decorators": "^7.12.1",
     "@babel/plugin-transform-react-inline-elements": "^7.12.1",