build(deps): bump nuxt from 2.15.2 to 2.15.3

Bumps [nuxt](https://github.com/nuxt/nuxt.js) from 2.15.2 to 2.15.3.
- [Release notes](https://github.com/nuxt/nuxt.js/releases)
- [Changelog](https://github.com/nuxt/nuxt.js/blob/dev/RELEASE_PLAN.md)
- [Commits](nuxt/nuxt@v2.15.2...v2.15.3)

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

package.json

@@ -21,7 +21,7 @@
     "bignumber.js": "^9.0.1",
     "detect-browser": "^5.2.0",
     "node-sass": "^5.0.0",
-    "nuxt": "^2.15.2",
+    "nuxt": "^2.15.3",
     "nuxt-fontawesome": "^0.4.0",
     "nuxt-i18n": "^6.21.0",
     "nuxt-purgecss": "^1.0.0",