upgrade to new versions

app/Models/Bidders.php

@@ -24,10 +24,13 @@ class Bidders extends Model
       'updated_at'
     ];
 
-    protected $dates = [
-      'created_at',
-      'updated_at'
-    ];
+    protected function casts(): array
+    {
+        return [
+            'created_at' => 'datetime',
+            'updated_at' => 'datetime',
+        ];
+    }
 
     public function checkout()
     {

app/Models/CarShowCategory.php

@@ -9,19 +9,19 @@ class CarShowCategory extends Model
   protected $table = 'car_show_categories';
   protected static ?string $recordTitleAttribute = 'category_name';
 
-  protected $casts = [
-    'vehicle_type' => 'boolean',
-  ];
-
   protected $fillable = [
   'category_name',
   'vehicle_type'
   ];
 
-  protected $dates = [
-  'created_at',
-  'updated_at'
-  ];
+  protected function casts(): array
+  {
+      return [
+          'vehicle_type' => 'boolean',
+          'created_at' => 'datetime',
+          'updated_at' => 'datetime',
+      ];
+  }
  
   public function vehicle()
   {

app/Models/CarShowWinner.php

@@ -14,10 +14,13 @@ class CarShowWinner extends Model
   'total_score'
   ];
 
-  protected $dates = [
-  'created_at',
-  'updated_at'
-  ];
+  protected function casts(): array
+  {
+      return [
+          'created_at' => 'datetime',
+          'updated_at' => 'datetime',
+      ];
+  }
 
   public function awardVehicle()
   {

app/Models/Checkout.php

@@ -21,10 +21,13 @@ class Checkout extends Model
     'updated_at'
     ];
 
-    protected $dates = [
-    'created_at',
-    'updated_at'
-    ];
+    protected function casts(): array
+    {
+        return [
+            'created_at' => 'datetime',
+            'updated_at' => 'datetime',
+        ];
+    }
 
     public function bidders()
     {

app/Models/Items.php

@@ -19,10 +19,13 @@ class Items extends Model
     'updated_at'
     ];
 
-    protected $dates = [
-    'created_at',
-    'updated_at'
-    ];
+    protected function casts(): array
+    {
+        return [
+            'created_at' => 'datetime',
+            'updated_at' => 'datetime',
+        ];
+    }
 
     public function winningBids()
     {

app/Models/Judges.php

@@ -13,10 +13,13 @@ class Judges extends Model
   'updated_at'
   ];
 
-  protected $dates = [
-  'created_at',
-  'updated_at'
-  ];
+  protected function casts(): array
+  {
+      return [
+          'created_at' => 'datetime',
+          'updated_at' => 'datetime',
+      ];
+  }
 
   public function vehicleScores()
   {

app/Models/PaymentMethods.php

@@ -16,10 +16,13 @@ class PaymentMethods extends Model
     'updated_at'
     ];
 
-    protected $dates = [
-    'created_at',
-    'updated_at'
-    ];
+    protected function casts(): array
+    {
+        return [
+            'created_at' => 'datetime',
+            'updated_at' => 'datetime',
+        ];
+    }
 
     public function checkout()
     {

app/Models/PeoplesChoice.php

@@ -14,10 +14,13 @@ class PeoplesChoice extends Model
   'updated_at'
   ];
 
-  protected $dates = [
-  'created_at',
-  'updated_at'
-  ];
+  protected function casts(): array
+  {
+      return [
+          'created_at' => 'datetime',
+          'updated_at' => 'datetime',
+      ];
+  }
 
   public function vehicles()
   {

app/Models/VehicleScores.php

@@ -15,10 +15,13 @@ class VehicleScores extends Model
   'updated_at'
   ];
 
-  protected $dates = [
-  'created_at',
-  'updated_at'
-  ];
+  protected function casts(): array
+  {
+      return [
+          'created_at' => 'datetime',
+          'updated_at' => 'datetime',
+      ];
+  }
 
   public function judges()
   {

app/Models/Vehicles.php

@@ -8,10 +8,6 @@ class Vehicles extends Model
 {
     protected $table = 'vehicles';
 
-    protected $casts = [
-        'owner' => 'integer'
-    ];
-
     protected $fillable = [
     'year',
     'make',
@@ -21,10 +17,14 @@ class Vehicles extends Model
     'owner'
     ];
 
-    protected $dates = [
-    'created_at',
-    'updated_at'
-    ];
+    protected function casts(): array
+    {
+        return [
+            'owner' => 'integer',
+            'created_at' => 'datetime',
+            'updated_at' => 'datetime',
+        ];
+    }
 
     public function vehicleType()
     {

app/Models/WinningBids.php

@@ -18,10 +18,13 @@ class WinningBids extends Model
     'updated_at'
     ];
 
-    protected $dates = [
-    'created_at',
-    'updated_at'
-    ];
+    protected function casts(): array
+    {
+        return [
+            'created_at' => 'datetime',
+            'updated_at' => 'datetime',
+        ];
+    }
 
     public function items()
     {