Update dependency express to v4.21.0 (#2606)

This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [express](http://expressjs.com/) ([source](https://redirect.github.com/expressjs/express)) | [`4.20.0` -> `4.21.0`](https://renovatebot.com/diffs/npm/express/4.19.2/4.21.0) | [![age](https://developer.mend.io/api/mc/badges/age/npm/express/4.21.0?slim=true)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://developer.mend.io/api/mc/badges/adoption/npm/express/4.21.0?slim=true)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://developer.mend.io/api/mc/badges/compatibility/npm/express/4.19.2/4.21.0?slim=true)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://developer.mend.io/api/mc/badges/confidence/npm/express/4.19.2/4.21.0?slim=true)](https://docs.renovatebot.com/merge-confidence/) |

---

### Release Notes

<details>
<summary>expressjs/express (express)</summary>

### [`v4.21.0`](https://redirect.github.com/expressjs/express/releases/tag/4.21.0)

[Compare Source](https://redirect.github.com/expressjs/express/compare/4.20.0...4.21.0)

#### What's Changed

-   Deprecate `"back"` magic string in redirects by [@&#8203;blakeembrey](https://redirect.github.com/blakeembrey) in [expressjs/express#5935
-   [email protected] by [@&#8203;wesleytodd](https://redirect.github.com/wesleytodd) in [expressjs/express#5954
-   fix(deps): [email protected] by [@&#8203;wesleytodd](https://redirect.github.com/wesleytodd) in [expressjs/express#5951
-   Upgraded dependency qs to 6.13.0 to match qs in body-parser by [@&#8203;agadzinski93](https://redirect.github.com/agadzinski93) in [expressjs/express#5946

#### New Contributors

-   [@&#8203;agadzinski93](https://redirect.github.com/agadzinski93) made their first contribution in [expressjs/express#5946

**Full Changelog**: expressjs/express@4.20.0...4.21.0

### [`v4.20.0`](https://redirect.github.com/expressjs/express/blob/HEAD/History.md#4200--2024-09-10)

[Compare Source](https://redirect.github.com/expressjs/express/compare/4.19.2...4.20.0)

\==========

-   deps: [email protected]
    -   Remove link renderization in html while redirecting
-   deps: [email protected]
    -   Remove link renderization in html while redirecting
-   deps: [email protected]
    -   add `depth` option to customize the depth level in the parser
    -   IMPORTANT: The default `depth` level for parsing URL-encoded data is now `32` (previously was `Infinity`)
-   Remove link renderization in html while using `res.redirect`
-   deps: [email protected]
    -   Adds support for named matching groups in the routes using a regex
    -   Adds backtracking protection to parameters without regexes defined
-   deps: encodeurl@~2.0.0
    -   Removes encoding of `\`, `|`, and `^` to align better with URL spec
-   Deprecate passing `options.maxAge` and `options.expires` to `res.clearCookie`
    -   Will be ignored in v5, clearCookie will set a cookie with an expires in the past to instruct clients to delete the cookie

</details>

---

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package.json

@@ -137,7 +137,7 @@
  "event-stream": "4.0.1",
  "execa": "9.3.0",
  "expect-type": "0.20.0",
- "express": "4.20.0",
+ "express": "4.21.0",
  "@faker-js/faker": "9.0.0",
  "faunadb": "4.8.0",
  "find-up": "7.0.0",