Update nuxtjs monorepo to v2.15.6 (#49)

Co-authored-by: Renovate Bot <bot@renovateapp.com>
Co-authored-by: Michael <12646562+mbround18@users.noreply.github.com>

package.json

@@ -12,7 +12,7 @@
     "axios": "0.21.1",
     "lodash": "4.17.21",
     "node-sass": "4.14.1",
-    "nuxt": "2.15.5",
+    "nuxt": "2.15.6",
     "tailwindcss": "1.9.6",
     "vue": "2.6.12",
     "vue-class-component": "7.2.6",
@@ -23,7 +23,7 @@
     "vuex-class": "0.3.2"
   },
   "devDependencies": {
-    "@nuxt/types": "2.15.5",
+    "@nuxt/types": "2.15.6",
     "@nuxt/typescript-build": "2.1.0",
     "@nuxt/typescript-runtime": "2.1.0",
     "@types/lodash": "4.14.161",