Update qless-php version (#29)

Author: YaroslavStryhun

composer.json

@@ -16,7 +16,7 @@
     ],
     "require": {
         "ext-json": "*",
-        "pdffiller/qless-php": "^3.13"
+        "pdffiller/qless-php": "^3.23"
     },
     "require-dev": {
         "illuminate/events": "5.6.*|5.7.*|^6.20",
@@ -40,6 +40,9 @@
     "config": {
         "optimize-autoloader": true,
         "preferred-install": "dist",
-        "sort-packages": true
+        "sort-packages": true,
+        "allow-plugins": {
+            "ocramius/package-versions": true
+        }
     }
 }