fix(deps): bump @docusaurus/preset-classic from 2.1.0 to 2.4.0

Bumps [@docusaurus/preset-classic](https://github.com/facebook/docusaurus/tree/HEAD/packages/docusaurus-preset-classic) from 2.1.0 to 2.4.0.
- [Release notes](https://github.com/facebook/docusaurus/releases)
- [Changelog](https://github.com/facebook/docusaurus/blob/main/CHANGELOG.md)
- [Commits](https://github.com/facebook/docusaurus/commits/v2.4.0/packages/docusaurus-preset-classic)

---
updated-dependencies:
- dependency-name: "@docusaurus/preset-classic"
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

package.json

@@ -96,7 +96,7 @@
     "dependencies": {
         "@astrojs/node": "^5.1.0",
         "@docusaurus/core": "2.4.0",
-        "@docusaurus/preset-classic": "2.1.0",
+        "@docusaurus/preset-classic": "2.4.0",
         "@mdx-js/react": "^1.6.22",
         "@swc/helpers": "~0.4.11",
         "@types/express": "~4.17.13",