chore: Normalize composer.json.

Author: drupol

composer.json

@@ -1,24 +1,39 @@
 {
     "name": "loophp/phptree",
-    "type": "library",
     "description": "An implementation of tree data structure",
+    "license": "MIT",
+    "type": "library",
     "keywords": [
         "tree",
         "php",
         "data structure",
         "binary tree"
     ],
-    "license": "MIT",
     "authors": [
         {
             "name": "Pol Dellaiera",
             "email": "[email protected]"
         }
     ],
+    "support": {
+        "issues": "https://github.com/loophp/phptree/issues",
+        "source": "https://github.com/loophp/phptree"
+    },
+    "funding": [
+        {
+            "type": "github",
+            "url": "https://github.com/drupol"
+        },
+        {
+            "type": "paypal",
+            "url": "https://www.paypal.me/drupol"
+        }
+    ],
     "require": {
         "php": ">= 7.1"
     },
     "require-dev": {
+        "drupol/launcher": "^2.2",
         "drupol/php-conventions": "^5",
         "drupol/phpmerkle": "^2.2",
         "friends-of-phpspec/phpspec-code-coverage": "^5",
@@ -30,9 +45,6 @@
         "nikic/php-parser": "^4",
         "phpspec/phpspec": "^7"
     },
-    "config": {
-        "sort-packages": true
-    },
     "autoload": {
         "psr-4": {
             "loophp\\phptree\\": "src/"
@@ -45,24 +57,13 @@
             "spec\\loophp\\phptree\\": "spec/loophp/phptree/"
         }
     },
+    "config": {
+        "sort-packages": true
+    },
     "scripts": {
         "changelog-unreleased": "docker-compose run auto_changelog -c .auto-changelog -u",
         "changelog-version": "docker-compose run auto_changelog -c .auto-changelog -v",
         "grumphp": "./vendor/bin/grumphp run",
         "infection": "./vendor/bin/infection run -j 1"
-    },
-    "support": {
-        "issues": "https://github.com/loophp/phptree/issues",
-        "source": "https://github.com/loophp/phptree"
-    },
-    "funding": [
-        {
-            "type": "github",
-            "url": "https://github.com/drupol"
-        },
-        {
-            "type": "paypal",
-            "url": "https://www.paypal.me/drupol"
-        }
-    ]
+    }
 }