Update babel monorepo to v7.15.0

Author: renovate-bot

package.json

@@ -33,10 +33,10 @@
  ],
  "devDependencies": {
  "@babel/cli": "7.14.8",
- "@babel/core": "7.14.8",
- "@babel/plugin-transform-runtime": "7.14.5",
+ "@babel/core": "7.15.0",
+ "@babel/plugin-transform-runtime": "7.15.0",
  "@babel/polyfill": "^7.0.0",
- "@babel/preset-env": "7.14.9",
+ "@babel/preset-env": "7.15.0",
  "@babel/register": "7.14.5",
  "babel-eslint": "10.1.0",
  "babel-loader": "8.2.2",