update structure of composer.json and update dependencies

composer.json

@@ -2,14 +2,33 @@
     "name": "digicomp/sequence",
     "description": "Sequence is a very simple database agnostic but database based sequence generator",
     "type": "neos-package",
+    "keywords": [
+        "Neos",
+        "Flow",
+        "doctrine",
+        "sequence"
+    ],
+    "homepage": "https://github.com/digital-competence/DigiComp.Sequence",
+    "license": "MIT",
+    "authors": [
+        {
+            "name": "Ferdinand Kuhl",
+            "email": "f.kuhl@digital-competence.de",
+            "homepage": "https://www.digital-competence.de",
+            "role": "Developer"
+        }
+    ],
     "require": {
+        "php": ">=7.4.0",
         "ext-pdo": "*",
-        "neos/flow": "^6.3.5 | ^7.0 | ^8.0",
+        "neos/flow": "^6.3.5 || ^7.0 || ^8.0"
-        "php": ">=7.4"
     },
     "require-dev": {
         "ext-pcntl": "*",
-        "phpunit/phpunit": "~8.5"
+        "mikey179/vfsstream": "^1.6.1",
+        "neos/buildessentials": "^7.0.0",
+        "phpunit/phpunit": "~8.5",
+        "vimeo/psalm": "~4.22.0"
     },
     "autoload": {
         "psr-4": {
@@ -21,15 +40,19 @@
             "DigiComp\\Sequence\\Tests\\": "Tests/"
         }
     },
+    "config": {
+        "sort-packages": true,
+        "platform-check": true
+    },
     "extra": {
-        "neos": {
-            "package-key": "DigiComp.Sequence"
-        },
         "branch-alias": {
             "dev-develop": "4.0.x-dev",
             "dev-version/2.x-dev": "2.1.x-dev",
             "dev-version/1.x-dev": "1.1.x-dev"
         },
+        "neos": {
+            "package-key": "DigiComp.Sequence"
+        },
         "applied-flow-migrations": [
             "Inwebs.Basket-201409170938",
             "TYPO3.FLOW3-201201261636",
@@ -66,21 +89,5 @@
             "Neos.Flow-20190425144900",
             "Neos.Flow-20190515215000"
         ]
-    },
+    }
-    "authors": [
-        {
-            "name": "Ferdinand Kuhl",
-            "email": "f.kuhl@digital-competence.de",
-            "homepage": "https://www.digital-competence.de",
-            "role": "Developer"
-        }
-    ],
-    "license": "MIT",
-    "homepage": "https://github.com/digital-competence/DigiComp.Sequence",
-    "keywords": [
-        "Neos",
-        "Flow",
-        "doctrine",
-        "sequence"
-    ]
 }