Bump select-dom from 9.3.1 to 9.4.0 in /src/Elastic.Documentation.Site (#1585)

---
updated-dependencies:
- dependency-name: select-dom
  dependency-version: 9.4.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

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

@@ -63,7 +63,7 @@
     "htmx-ext-head-support": "2.0.4",
     "htmx-ext-preload": "2.1.1",
     "htmx.org": "2.0.6",
-    "select-dom": "9.3.1",
+    "select-dom": "9.4.0",
     "tailwindcss": "4.1.11",
     "tippy.js": "6.3.7",
     "ua-parser-js": "2.0.4"