chore(deps): update devdependency standard-version to v8 [security]

Author: renovate[bot]

package.json

@@ -77,7 +77,7 @@
     "jest": "^23.6.0",
     "jsdom": "^13.1.0",
     "nuxt-edge": "^2.4.0-25786640.3ebd6b70",
-    "standard-version": "^4.4.0"
+    "standard-version": "^8.0.0"
   },
   "husky": {
     "hooks": {