Support Laravel 8.77 Attributes (#1289)

* ✨ Set properties from model functions returning an Attribute

* ✅ Add test for model Attributes

* 🎨 Fix code style

* 🔖 Update changelog

* ✅ Update test to not require php 8

* 🐛 Fix PHP 7.3 incompatibility

* ✅ Update tests to only run when Illuminate Attribute exists

tests/Console/ModelsCommand/Attributes/Models/Simple.php

@@ -0,0 +1,23 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Barryvdh\LaravelIdeHelper\Tests\Console\ModelsCommand\Attributes\Models;
+
+use Illuminate\Database\Eloquent\Casts\Attribute;
+use Illuminate\Database\Eloquent\Model;
+
+class Simple extends Model
+{
+    public function name(): Attribute
+    {
+        return new Attribute(
+            function (?string $name): ?string {
+                return $name;
+            },
+            function (?string $name): ?string {
+                return $name === null ? null : ucfirst($name);
+            }
+        );
+    }
+}