fix: update library.json dependencies

library.json

@@ -22,7 +22,7 @@
     {
       "owner": "mathieucarbou",
       "name": "ESP Async WebServer",
-      "version": "^3.0.6",
+      "version": "^3.1.1",
       "platforms": ["espressif8266", "espressif32"]
     }
   ]