chore(deps-dev): bump eslint to 8.x (aws-samples#59)

Author: trivikr

package.json

@@ -16,7 +16,7 @@
   "devDependencies": {
     "husky": "^4.2.3",
     "lint-staged": "^10.1.2",
-    "prettier": "2.2.0"
+    "prettier": "2.4.1"
   },
   "husky": {
     "hooks": {

packages/backend/.eslintrc.json

@@ -1,18 +1,9 @@
 {
   "env": {
-    "browser": true,
-    "es6": true
-  },
-  "extends": [
-    "eslint:recommended",
-    "plugin:@typescript-eslint/eslint-recommended",
-    "prettier",
-    "prettier/@typescript-eslint"
-  ],
-  "globals": {
-    "Atomics": "readonly",
-    "SharedArrayBuffer": "readonly"
+    "es2021": true,
+    "node": true
   },
+  "extends": ["eslint:recommended", "plugin:@typescript-eslint/recommended"],
   "parser": "@typescript-eslint/parser",
   "parserOptions": {
     "ecmaVersion": 2018,

packages/backend/package.json

@@ -25,11 +25,10 @@
   "devDependencies": {
     "@types/aws-lambda": "^8.10.64",
     "@types/node": "^14.14.2",
-    "@typescript-eslint/eslint-plugin": "4.8.2",
-    "@typescript-eslint/parser": "4.8.2",
+    "@typescript-eslint/eslint-plugin": "5.3.1",
+    "@typescript-eslint/parser": "5.3.1",
     "esbuild": "0.12.17",
-    "eslint": "7.14.0",
-    "eslint-config-prettier": "6.15.0",
+    "eslint": "8.2.0",
     "typescript": "~4.4.4"
   },
   "sideEffects": false