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

Author: renovate[bot]

package.json

@@ -76,7 +76,7 @@
     "jest": "^24.8.0",
     "jsdom": "^15.1.0",
     "nuxt-edge": "^2.4.0-25811407.6d8da0ed",
-    "standard-version": "^6.0.1"
+    "standard-version": "^8.0.0"
   },
   "husky": {
     "hooks": {