Update dependency @babel/core to v7.21.8

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
@babel/core (source)	7.21.5 -> 7.21.8

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Release Notes

babel/babel

### [`v7.21.8`](https://togithub.com/babel/babel/blob/HEAD/CHANGELOG.md#v7218-2023-05-02) [Compare Source](https://togithub.com/babel/babel/compare/v7.21.5...v7.21.8) ##### :eyeglasses: Spec Compliance - `babel-parser` - [#​15602](https://togithub.com/babel/babel/pull/15602) Remove `using await` restriction in explicitResourceManagement ([@​JLHwung](https://togithub.com/JLHwung)) ##### :bug: Bug Fix - `babel-helper-create-class-features-plugin`, `babel-helper-create-regexp-features-plugin` - [#​15605](https://togithub.com/babel/babel/pull/15605) Fix backward compat for semver checks in class\®exp feat plugins ([@​nicolo-ribaudo](https://togithub.com/nicolo-ribaudo))

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