feat(package.json): Update babel monorepo to v7.12.8

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
@babel/cli (source)	7.12.7 -> 7.12.8
@babel/core (source)	7.12.7 -> 7.12.8

---

Release Notes

babel/babel

### [`v7.12.8`](https://togithub.com/babel/babel/blob/master/CHANGELOG.md#v7128-2020-11-23) [Compare Source](https://togithub.com/babel/babel/compare/v7.12.7...v7.12.8) ##### :bug: Bug Fix - `babel-traverse` - [#​12390](https://togithub.com/babel/babel/pull/12390) Avoid infinite loops in type inference logic ([@​nicolo-ribaudo](https://togithub.com/nicolo-ribaudo)) - [#​12387](https://togithub.com/babel/babel/pull/12387) Initialize NodePath context when using `getSibling` ([@​nicolo-ribaudo](https://togithub.com/nicolo-ribaudo)) - `babel-cli` - [#​12382](https://togithub.com/babel/babel/pull/12382) Fix Node version check ([@​Hypnosphi](https://togithub.com/Hypnosphi)) ##### :house: Internal - [#​12372](https://togithub.com/babel/babel/pull/12372) chore: fix watch config ([@​JLHwung](https://togithub.com/JLHwung))

---

Renovate configuration

:date: Schedule: "after 10pm every weekday,before 5am every weekday,every weekend" (UTC).

:vertical_traffic_light: Automerge: Enabled.

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

:no_bell: 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.

[halfzebra]

:tada: This PR is included in version 5.17.0 :tada:

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

Your semantic-release bot :package::rocket: