Merge pull request 'Added created_at and updated_at column on model file' (#404) from ranjith-dev into master

Reviewed-on: poc/pds#404

app/Models/InvoiceValidation.php

@@ -33,6 +33,8 @@ class InvoiceValidation extends Model
         'operator_id',
         'created_by',
         'updated_by',
+        'created_at',
+        'updated_at',
     ];
 
     public function plant(): BelongsTo