ctype_digit deprecation fix

Author: hexplor

composer.lock

@@ -4,16 +4,16 @@
     "license": "GPLv2",
 
     "require": {
-        "php": ">=5.6.20",
+        "php": ">=7.2.5",
         "symfony/event-dispatcher": "~3.4",
-        "symfony/yaml": "~3.4",
+        "symfony/yaml": "~5.4.0",
         "pimple/pimple": "~3.2",
-        "filp/whoops": "~2.5",
-        "rockettheme/toolbox": "~1.5",
+        "filp/whoops": "^2.15.2",
+        "rockettheme/toolbox": "~1.6.4",
         "erusev/parsedown-extra": "~0.7",
 
         "twig/twig": "~1.42",
-        "scssphp/scssphp": "1.6.0",
+        "scssphp/scssphp": "1.10.0",
         "leafo/scssphp": "0.8.4"
     },
     "require-dev": {
@@ -32,7 +32,7 @@
     },
     "config": {
         "platform": {
-            "php": "5.6.20"
+            "php": "7.2.5"
         }
     }
 }