Update babel monorepo to v7.13.8

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
@babel/core (source)	7.13.1 -> 7.13.8
@babel/preset-env (source)	7.13.5 -> 7.13.8
@babel/register (source)	7.13.0 -> 7.13.8

---

Release Notes

babel/babel

v7.13.8

Compare Source

🐛 Bug Fix

• Other
  • #​12909 chore: do not provide polyfills on bundling @​babel/standalone (@​JLHwung)
  • #​12891 fix(eslint-parser): merge input estree options (@​JLHwung)
• babel-compat-data, babel-preset-env
  • #​12901 Fix Module not found: Error: Can't resolve 'core-js/modules/es6.array.concat.js' with compat-data@7.13.x (@​luxp)
• babel-plugin-transform-runtime, babel-runtime-corejs2, babel-runtime-corejs3, babel-runtime
  • #​12893 Allow require() of runtime helpers in Node.js 13.2-13.6 (@​nicolo-ribaudo)

💅 Polish

• babel-helper-create-class-features-plugin
  • #​12898 Do not warn for loose of class features in preset-env (@​nicolo-ribaudo)

🏠 Internal

• babel-core, babel-helper-transform-fixture-test-runner, babel-register
  • #​12820 [internal] Keep the .cjs extension when compiling source files (@​nicolo-ribaudo)
• babel-plugin-transform-runtime, babel-runtime-corejs2, babel-runtime
  • #​12883 Improve @babel/runtime esm stability (@​nicolo-ribaudo)

🔬 Output optimization

• babel-plugin-proposal-object-rest-spread
  • #​12899 Skip _extends helper for {…x} with modern targets (@​nicolo-ribaudo)

---

Renovate configuration

📅 Schedule: At any time (no schedule defined).

🚦 Automerge: Enabled.

♻️ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about these updates again.

---

• If you want to rebase/retry this PR, check this box

---

This PR has been generated by WhiteSource Renovate. View repository job log here.

[coveralls]

Coverage remained the same at 100.0% when pulling a00f34f on renovate/babel-monorepo into 618984b on master.