Update typescript-eslint monorepo to v3.9.0 (#677)

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

Author: renovate[bot]

package-lock.json

@@ -28,8 +28,8 @@
         "@types/glob": "7.1.3",
         "@types/jest": "26.0.9",
         "@types/node": "12.12.21",
-        "@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",
         "babel-jest": "26.3.0",
         "eslint": "7.6.0",
         "husky": "4.2.5",