chore(deps): update typescript-eslint monorepo to v3.9.0

Author: renovate-bot

package-lock.json

@@ -34,8 +34,8 @@
     "@nestjs/core": "7.4.2",
     "@nestjs/schematics": "7.0.1",
     "@types/node": "13.13.5",
-    "@typescript-eslint/eslint-plugin": "3.8.0",
-    "@typescript-eslint/parser": "3.8.0",
+    "@typescript-eslint/eslint-plugin": "3.9.0",
+    "@typescript-eslint/parser": "3.9.0",
     "eslint": "7.6.0",
     "eslint-config-prettier": "6.11.0",
     "eslint-plugin-import": "2.22.0",