Feature/Upgrade domain model to 4.0

* Dropped support for PHP 8.1.x.

.github/workflows/test.yml

@@ -12,7 +12,7 @@ jobs:
 
     strategy:
       matrix:
-        php-version: [ '8.1', '8.2', '8.3' ]
+        php-version: [ '8.2', '8.3' ]
 
     steps:
       - name: Checkout source code

.gitignore

@@ -8,3 +8,4 @@ coverage.xml
 test.xml
 .phpunit.result.cache
 composer.lock
+/.phpunit.cache

composer.json

@@ -11,13 +11,13 @@
   ],
   "minimum-stability": "stable",
   "require": {
-    "php": "^8.1",
-    "complex-heart/domain-model": "^3.0.0",
-    "ext-json": "*"
+    "php": "^8.2",
+    "ext-json": "*",
+    "complex-heart/domain-model": "^4.0.0"
   },
   "require-dev": {
+    "mockery/mockery": "^1.6.0",
     "pestphp/pest": "^2.0",
-    "pestphp/pest-plugin-mock": "^2.0",
     "pestphp/pest-plugin-faker": "^2.0",
     "phpstan/phpstan": "^1.0",
     "phpstan/extension-installer": "^1.3",