chore(deps): lock file maintenance website-frontend (#3767)

This PR contains the following updates:

| Package | Type | Update | Change | Age | Confidence |
|---|---|---|---|---|---|
|  |  | lockFileMaintenance | All locks refreshed |  |  |
|
[mini-css-extract-plugin](https://redirect.github.com/webpack-contrib/mini-css-extract-plugin)
| devDependencies | patch | [`2.9.2` ->
`2.9.3`](https://renovatebot.com/diffs/npm/mini-css-extract-plugin/2.9.2/2.9.3)
|
[![age](https://developer.mend.io/api/mc/badges/age/npm/mini-css-extract-plugin/2.9.3?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![confidence](https://developer.mend.io/api/mc/badges/confidence/npm/mini-css-extract-plugin/2.9.2/2.9.3?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
| [sass](https://redirect.github.com/sass/dart-sass) | devDependencies |
minor | [`1.89.2` ->
`1.90.0`](https://renovatebot.com/diffs/npm/sass/1.89.2/1.90.0) |
[![age](https://developer.mend.io/api/mc/badges/age/npm/sass/1.90.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![confidence](https://developer.mend.io/api/mc/badges/confidence/npm/sass/1.89.2/1.90.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|

🔧 This Pull Request updates lock files to use the latest dependency
versions.

---

### Release Notes

<details>
<summary>webpack-contrib/mini-css-extract-plugin
(mini-css-extract-plugin)</summary>

###
[`v2.9.3`](https://redirect.github.com/webpack-contrib/mini-css-extract-plugin/blob/HEAD/CHANGELOG.md#293-2025-08-04)

[Compare
Source](https://redirect.github.com/webpack-contrib/mini-css-extract-plugin/compare/v2.9.2...v2.9.3)

</details>

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

###
[`v1.90.0`](https://redirect.github.com/sass/dart-sass/blob/HEAD/CHANGELOG.md#1900)

[Compare
Source](https://redirect.github.com/sass/dart-sass/compare/1.89.2...1.90.0)

- Allow a `@forward`ed module to be loaded with a configuration when
that module
has already been loaded with a different configuration *and* the module
  doesn't define any variables that would have been configured anyway.

</details>

---

### Configuration

📅 **Schedule**: Branch creation - "before 6am on wednesday" in timezone
Australia/Sydney, Automerge - At any time (no schedule defined).

🚦 **Automerge**: Disabled by config. Please merge this manually once you
are satisfied.

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

👻 **Immortal**: This PR will be recreated if closed unmerged. Get
[config
help](https://redirect.github.com/renovatebot/renovate/discussions) if
that's undesired.

---

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

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View the [repository job
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Author: renovate-bot

gcp/website/frontend3/package-lock.json

@@ -22,9 +22,9 @@
     "copy-webpack-plugin": "10.2.4",
     "css-loader": "6.11.0",
     "html-webpack-plugin": "5.6.3",
-    "mini-css-extract-plugin": "2.9.2",
+    "mini-css-extract-plugin": "2.9.3",
     "raw-loader": "4.0.2",
-    "sass": "1.89.2",
+    "sass": "1.90.0",
     "sass-loader": "12.6.0",
     "style-loader": "3.3.4",
     "webpack": "5.101.0",