build(deps-dev): bump @mdx-js/loader from 2.3.0 to 3.0.0

Bumps [@mdx-js/loader](https://github.com/mdx-js/mdx/tree/HEAD/packages/loader) from 2.3.0 to 3.0.0.
- [Release notes](https://github.com/mdx-js/mdx/releases)
- [Changelog](https://github.com/mdx-js/mdx/blob/main/changelog.md)
- [Commits](https://github.com/mdx-js/mdx/commits/3.0.0/packages/loader)

---
updated-dependencies:
- dependency-name: "@mdx-js/loader"
  dependency-type: direct:development
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

package.json

@@ -75,7 +75,7 @@
     "@babel/plugin-proposal-class-properties": "^7.17.12",
     "@babel/preset-env": "^7.22.15",
     "@babel/preset-react": "^7.22.15",
-    "@mdx-js/loader": "^2.0.0-next.9",
+    "@mdx-js/loader": "^3.0.0",
     "@octokit/auth-action": "^4.0.0",
     "@octokit/rest": "^20.0.1",
     "@pmmmwh/react-refresh-webpack-plugin": "next",