chore(deps): update devdependency jest to v26

Author: renovate-bot

package.json

@@ -73,7 +73,7 @@
     "eslint-plugin-vue": "^5.2.2",
     "get-port": "^5.0.0",
     "husky": "^2.2.0",
-    "jest": "^24.8.0",
+    "jest": "^26.0.1",
     "jsdom": "^15.1.0",
     "nuxt-edge": "^2.4.0-25811407.6d8da0ed",
     "standard-version": "^6.0.1"