Update eslint to v8 (#300)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

package.json

@@ -44,8 +44,8 @@
     "@types/jest": "27.5.2",
     "@types/lodash.isplainobject": "4.0.9",
     "@types/lodash.mapvalues": "4.6.9",
-    "@typescript-eslint/eslint-plugin": "7.18.0",
-    "@typescript-eslint/parser": "7.18.0",
+    "@typescript-eslint/eslint-plugin": "8.20.0",
+    "@typescript-eslint/parser": "8.20.0",
     "@vue/test-utils": "2.4.5",
     "apollo-client": "2.6.10",
     "apollo-link": "1.2.14",