Bump katex from 0.16.27 to 0.16.40 in /src/Elastic.Documentation.Site (#3034)

Bumps [katex](https://github.com/KaTeX/KaTeX) from 0.16.27 to 0.16.40.
- [Release notes](https://github.com/KaTeX/KaTeX/releases)
- [Changelog](https://github.com/KaTeX/KaTeX/blob/main/CHANGELOG.md)
- [Commits](KaTeX/KaTeX@v0.16.27...v0.16.40)

---
updated-dependencies:
- dependency-name: katex
  dependency-version: 0.16.40
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

src/Elastic.Documentation.Site/package-lock.json

@@ -126,7 +126,7 @@
     "htmx-ext-preload": "2.1.2",
     "htmx.org": "2.0.8",
     "idb-keyval": "6.2.2",
-    "katex": "^0.16.27",
+    "katex": "^0.16.40",
     "lodash": "^4.17.23",
     "marked": "17.0.1",
     "select-dom": "9.5.0",