fix: packages/@vue/cli-plugin-e2e-cypress/package.json to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JS-DEBUG-3227433

Author: snyk-bot

packages/@vue/cli-plugin-e2e-cypress/package.json

@@ -23,7 +23,7 @@
   },
   "dependencies": {
     "@vue/cli-shared-utils": "^3.0.0-rc.3",
-    "cypress": "^3.0.0",
+    "cypress": "^7.4.0",
     "eslint-plugin-cypress": "^2.0.1"
   }
 }