Update typescript-eslint monorepo to v4.8.0 (#829)

Co-authored-by: Renovate Bot <bot@renovateapp.com>

Author: renovate[bot]

package-lock.json

@@ -34,8 +34,8 @@
         "@types/lodash": "4.14.165",
         "@types/minimatch": "3.0.3",
         "@types/node": "12.12.21",
-        "@typescript-eslint/eslint-plugin": "4.7.0",
-        "@typescript-eslint/parser": "4.7.0",
+        "@typescript-eslint/eslint-plugin": "4.8.0",
+        "@typescript-eslint/parser": "4.8.0",
         "babel-jest": "26.6.3",
         "eslint": "7.13.0",
         "husky": "4.3.0",