upgrade project and add deploy workflow

package.json

@@ -1,11 +1,15 @@
 {
   "name": "abondance-bot",
   "version": "1.0.0",
-  "description": "",
+  "description": "Surveille les changements dans la liste des membres de la guilde Abondance",
   "main": "index.js",
   "type": "module",
   "scripts": {
-    "test": "echo \"Error: no test specified\" && exit 1"
+    "start": "node index.js",
+    "test": "node --test"
+  },
+  "engines": {
+    "node": ">=20"
   },
   "keywords": [],
   "author": "",
@@ -13,6 +17,7 @@
   "dependencies": {
     "cheerio": "^1.1.2",
     "discord.js": "^14.23.2",
+    "dotenv": "^17.4.2",
     "node-cron": "^4.2.1",
     "node-fetch": "^3.3.2"
   }