Update dependency express to v4.21.0

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [@types/node](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/node) ([source](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/node)) | devDependencies | patch | [`20.16.5` -> `20.16.10`](https://renovatebot.com/diffs/npm/@types%2fnode/20.16.5/20.16.10) |

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Reviewed-on: #372
Reviewed-by: Vylpes <ethan@vylpes.com>
Co-authored-by: Renovate Bot <renovate@vylpes.com>
Co-committed-by: Renovate Bot <renovate@vylpes.com>

yarn.lock

@@ -1282,9 +1282,9 @@
   integrity sha512-QpLcX9ZSsq3YYUUnD3nFDY8H7wctAhQj/TFKL8Ya8v5fMm3CFXxo8zStsLAl780ltoYoo1WvKUVGBQK+1ifr7g==
 
 "@types/node@^20.0.0":
-  version "20.16.5"
-  resolved "https://registry.yarnpkg.com/@types/node/-/node-20.16.5.tgz#d43c7f973b32ffdf9aa7bd4f80e1072310fd7a53"
-  integrity sha512-VwYCweNo3ERajwy0IUlqqcyZ8/A7Zwa9ZP3MnENWcB11AejO+tLy3pu850goUW2FC/IJMdZUfKpX/yxL1gymCA==
+  version "20.16.10"
+  resolved "https://registry.yarnpkg.com/@types/node/-/node-20.16.10.tgz#0cc3fdd3daf114a4776f54ba19726a01c907ef71"
+  integrity sha512-vQUKgWTjEIRFCvK6CyriPH3MZYiYlNy0fKiEYHWbcoWLEgs4opurGGKlebrTLqdSMIbXImH6XExNiIyNUv3WpA==
   dependencies:
     undici-types "~6.19.2"