fix(deps): update dependency sass to v1.77.5 (#414)

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

This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [sass](https://github.com/sass/dart-sass) | [`1.77.4` ->
`1.77.5`](https://renovatebot.com/diffs/npm/sass/1.77.4/1.77.5) |
[![age](https://developer.mend.io/api/mc/badges/age/npm/sass/1.77.5?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![adoption](https://developer.mend.io/api/mc/badges/adoption/npm/sass/1.77.5?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![passing](https://developer.mend.io/api/mc/badges/compatibility/npm/sass/1.77.4/1.77.5?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![confidence](https://developer.mend.io/api/mc/badges/confidence/npm/sass/1.77.4/1.77.5?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|

---

### Release Notes

<details>
<summary>sass/dart-sass (sass)</summary>

###
[`v1.77.5`](https://github.com/sass/dart-sass/blob/HEAD/CHANGELOG.md#1775)

[Compare
Source](https://github.com/sass/dart-sass/compare/1.77.4...1.77.5)

-   Fully trim redundant selectors generated by `@extend`.

</details>

---

### Configuration

📅 **Schedule**: Branch creation - "before 4am on Monday" in timezone
America/New_York, Automerge - At any time (no schedule defined).

🚦 **Automerge**: Enabled.

♻ **Rebasing**: Whenever PR is behind base branch, 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/openedx/edx-ui-toolkit).

<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiIzNy4zOTMuMCIsInVwZGF0ZWRJblZlciI6IjM3LjM5My4wIiwidGFyZ2V0QnJhbmNoIjoibWFzdGVyIiwibGFiZWxzIjpbXX0=-->

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