chore(deps): update dependency eslint-plugin-regexp to v2.4.0 (#78)

[![Mend
Renovate](https://app.renovatebot.com/images/banner.svg)](https://renovatebot.com)

This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
|
[eslint-plugin-regexp](https://github.com/ota-meshi/eslint-plugin-regexp)
| [`2.3.0` ->
`2.4.0`](https://renovatebot.com/diffs/npm/eslint-plugin-regexp/2.3.0/2.4.0)
|
[![age](https://developer.mend.io/api/mc/badges/age/npm/eslint-plugin-regexp/2.4.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![adoption](https://developer.mend.io/api/mc/badges/adoption/npm/eslint-plugin-regexp/2.4.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![passing](https://developer.mend.io/api/mc/badges/compatibility/npm/eslint-plugin-regexp/2.3.0/2.4.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![confidence](https://developer.mend.io/api/mc/badges/confidence/npm/eslint-plugin-regexp/2.3.0/2.4.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|

---

### Release Notes

<details>
<summary>ota-meshi/eslint-plugin-regexp (eslint-plugin-regexp)</summary>

###
[`v2.4.0`](https://github.com/ota-meshi/eslint-plugin-regexp/blob/HEAD/CHANGELOG.md#240)

[Compare
Source](https://github.com/ota-meshi/eslint-plugin-regexp/compare/v2.3.0...v2.4.0)

##### Minor Changes

- Change default configuration of `prefer-d` to ignore digits inside
character classes.
([#&#8203;715](https://github.com/ota-meshi/eslint-plugin-regexp/pull/715))

</details>

---

### Configuration

📅 **Schedule**: Branch creation - At any time (no schedule defined),
Automerge - 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 this update
again.

---

- [ ] <!-- rebase-check -->If you want to rebase/retry this PR, check
this box

---

This PR has been generated by [Mend
Renovate](https://www.mend.io/free-developer-tools/renovate/). View
repository job log
[here](https://developer.mend.io/github/JoshuaKGoldberg/npm-username-to-packages).

<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiIzNy4yNjkuMiIsInVwZGF0ZWRJblZlciI6IjM3LjI2OS4yIiwidGFyZ2V0QnJhbmNoIjoibWFpbiJ9-->

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>