build(deps-dev): bump hugo-extended from 0.147.6 to 0.147.8 in /docs

Bumps [hugo-extended](https://github.com/jakejarvis/hugo-extended) from 0.147.6 to 0.147.8.
- [Commits](jakejarvis/hugo-extended@v0.147.6...v0.147.8)

---
updated-dependencies:
- dependency-name: hugo-extended
  dependency-version: 0.147.8
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

docs/package.json

@@ -32,7 +32,7 @@
   },
   "devDependencies": {
     "autoprefixer": "^10.4.14",
-    "hugo-extended": "0.147.6",
+    "hugo-extended": "0.147.8",
     "postcss-cli": "^11.0.0"
   }
 }