Update eslint

Author: renovate-bot

frontend/package.json

@@ -23,8 +23,8 @@
   },
   "devDependencies": {
     "@types/jest": "27.0.2",
-    "@typescript-eslint/eslint-plugin": "4.33.0",
-    "@typescript-eslint/parser": "4.33.0",
+    "@typescript-eslint/eslint-plugin": "5.0.0",
+    "@typescript-eslint/parser": "5.0.0",
     "@vue/cli-plugin-babel": "4.5.13",
     "@vue/cli-plugin-e2e-nightwatch": "4.5.13",
     "@vue/cli-plugin-eslint": "4.5.13",
@@ -38,7 +38,7 @@
     "@vue/test-utils": "2.0.0-rc.14",
     "babel-jest": "26.6.3",
     "chromedriver": "94.0.0",
-    "eslint": "6.8.0",
+    "eslint": "8.0.0",
     "eslint-plugin-vue": "7.19.1",
     "geckodriver": "2.0.4",
     "node-sass": "6.0.1",