Update tools, fix cs (#617)

Author: gharlan

composer.json

@@ -6,12 +6,8 @@
     },
 
     "require-dev": {
-        "friendsofphp/php-cs-fixer": "^3.15.1",
         "friendsofredaxo/linter": "^1.4",
-        "j13k/yaml-lint": "@dev",
-        "redaxo/php-cs-fixer-config": "^2.1.1",
-        "redaxo/source": "^5.18.3",
-        "yakamara/redaxo_yform": "dev-master"
+        "redaxo/php-cs-fixer-config": "^2.19.0"
     },
 
     "autoload": {
@@ -22,7 +18,6 @@
 
     "scripts": {
         "cs": "php-cs-fixer fix -v --ansi",
-        "psalm": "psalm --no-suggestions",
         "post-update-cmd": "@composer bump"
     },