chore(pos-dapp): fix dependency vulnerabilities and update packages (#991)

Bump @reown/appkit 1.8.2 -> 1.8.18, next 15.5.9 -> 15.5.10,
react/react-dom 19.1.0 -> 19.2.4, eslint-config-next 15.5.2 -> 15.5.10,
and pin @walletconnect/pos-client to 1.0.5 (was resolving to canary).
Addresses 15 audit vulnerabilities (h3 request smuggling, next DoS, tar
file overwrite).

Co-authored-by: Cursor <cursoragent@cursor.com>

Author: ganchoradkov

advanced/dapps/pos-dapp/package.json

@@ -9,12 +9,12 @@
     "lint": "eslint"
   },
   "dependencies": {
-    "@reown/appkit": "1.8.2",
-    "next": "15.5.9",
-    "react": "19.1.0",
-    "react-dom": "19.1.0",
-    "react-hot-toast": "^2.6.0",
-    "@walletconnect/pos-client": "0.0.0-canary.1"
+    "@reown/appkit": "1.8.18",
+    "@walletconnect/pos-client": "1.0.5",
+    "next": "15.5.10",
+    "react": "19.2.4",
+    "react-dom": "19.2.4",
+    "react-hot-toast": "^2.6.0"
   },
   "devDependencies": {
     "@eslint/eslintrc": "^3",
@@ -23,8 +23,8 @@
     "@types/react": "^19",
     "@types/react-dom": "^19",
     "eslint": "^9",
-    "eslint-config-next": "15.5.2",
+    "eslint-config-next": "15.5.10",
     "tailwindcss": "^4",
     "typescript": "^5"
   }
-}
+}