Update Node.js to v20

Author: renovate[bot]

docker/Dockerfile

@@ -1,4 +1,4 @@
-FROM node:17.4-alpine
+FROM node:20.12-alpine
 
 WORKDIR /app
 

package-lock.json

@@ -6,7 +6,7 @@
     "private": true,
     "license": "UNLICENSED",
     "engines": {
-        "node": "=17.4.0",
+        "node": "=20.12.1",
         "npm": "=8.3.1"
     },
     "scripts": {
@@ -55,7 +55,7 @@
         "@nestjs/testing": "^8.0.0",
         "@types/express": "^4.17.13",
         "@types/jest": "27.0.2",
-        "@types/node": "^16.0.0",
+        "@types/node": "^20.0.0",
         "@types/supertest": "^2.0.11",
         "@typescript-eslint/eslint-plugin": "^5.0.0",
         "@typescript-eslint/parser": "^5.0.0",