fix(deps): bump @nuxtjs/sitemap from 2.4.0 to 7.4.7 in /web

Bumps [@nuxtjs/sitemap](https://github.com/nuxt-modules/sitemap) from 2.4.0 to 7.4.7.
- [Release notes](https://github.com/nuxt-modules/sitemap/releases)
- [Commits](nuxt-modules/sitemap@v2.4.0...v7.4.7)

---
updated-dependencies:
- dependency-name: "@nuxtjs/sitemap"
  dependency-version: 7.4.7
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

web/package.json

@@ -25,7 +25,7 @@
     "@mdi/js": "^7.4.47",
     "@nuxtjs/dotenv": "^1.4.2",
     "@nuxtjs/firebase": "^8.2.2",
-    "@nuxtjs/sitemap": "^2.4.0",
+    "@nuxtjs/sitemap": "^7.4.7",
     "chart.js": "^4.5.0",
     "chartjs-adapter-moment": "^1.0.1",
     "core-js": "^3.44.0",