feat: update vendor libs

Author: Sebastian Buckpesch

composer.json

@@ -25,14 +25,14 @@
   "require": {
     "ext-curl": "*",
     "ext-gd": "*",
-    "leafo/scssphp": "^v0.7.7",
-    "mobiledetect/mobiledetectlib": "^2.8.12",
-    "mustache/mustache": "v2.8.0",
-    "oyejorge/less.php": "^1.7",
+    "leafo/scssphp": "^v0.8.4",
+    "mobiledetect/mobiledetectlib": "^2.8.34",
+    "mustache/mustache": "v2.13.0",
+    "oyejorge/less.php": "^1.7.0",
     "php": ">=7.1",
-    "symfony/cache": "^3.2",
+    "symfony/cache": "^3.4.36",
     "thadafinser/user-agent-parser":"^v2.0.0",
-    "whichbrowser/parser": "^2.0"
+    "whichbrowser/parser": "^2.0.37"
   },
   "require-dev": {
     "codeception/codeception": "^2.2"