fix(deps): update dependency reveal.js to v4.6.1 (#1008)

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

This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [reveal.js](https://revealjs.com)
([source](https://togithub.com/hakimel/reveal.js)) | [`4.6.0` ->
`4.6.1`](https://renovatebot.com/diffs/npm/reveal.js/4.6.0/4.6.1) |
[![age](https://developer.mend.io/api/mc/badges/age/npm/reveal.js/4.6.1?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![adoption](https://developer.mend.io/api/mc/badges/adoption/npm/reveal.js/4.6.1?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![passing](https://developer.mend.io/api/mc/badges/compatibility/npm/reveal.js/4.6.0/4.6.1?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![confidence](https://developer.mend.io/api/mc/badges/confidence/npm/reveal.js/4.6.0/4.6.1?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|

---

### Release Notes

<details>
<summary>hakimel/reveal.js (reveal.js)</summary>

###
[`v4.6.1`](https://togithub.com/hakimel/reveal.js/compare/4.6.0...4.6.1)

[Compare
Source](https://togithub.com/hakimel/reveal.js/compare/4.6.0...4.6.1)

</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/peaceiris/hugo-theme-iris).

<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiIzNi44My4wIiwidXBkYXRlZEluVmVyIjoiMzYuODMuMCIsInRhcmdldEJyYW5jaCI6Im1haW4ifQ==-->

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