build(deps-dev): Bump cspell from 8.15.2 to 8.15.4 in /website

Bumps [cspell](https://github.com/streetsidesoftware/cspell/tree/HEAD/packages/cspell) from 8.15.2 to 8.15.4.
- [Release notes](https://github.com/streetsidesoftware/cspell/releases)
- [Changelog](https://github.com/streetsidesoftware/cspell/blob/main/packages/cspell/CHANGELOG.md)
- [Commits](https://github.com/streetsidesoftware/cspell/commits/v8.15.4/packages/cspell)

---
updated-dependencies:
- dependency-name: cspell
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

website/package.json

@@ -32,7 +32,7 @@
     "@docusaurus/module-type-aliases": "3.5.2",
     "@docusaurus/tsconfig": "3.5.2",
     "@docusaurus/types": "3.5.2",
-    "cspell": "^8.15.2",
+    "cspell": "^8.15.4",
     "markdown-link-check": "^3.12.2",
     "typescript": "~5.6.3"
   },