ConvertTo-DbaDataTable - Fix DbaDateTime issue

As proposed by GPT 4o 🤞

public/ConvertTo-DbaDataTable.ps1

@@ -166,6 +166,11 @@ function ConvertTo-DbaDataTable {
                     }
                 }
                 $specialType = 'Size'
+            } elseif ($type -eq 'Dataplat.Dbatools.Utility.DbaDateTime') {
+                $special = $true
+                $value = [System.DateTime]$value.DateTime
+                $type = 'System.DateTime'
+                $specialType = 'DateTime'
             } elseif (-not ($type -in $types)) {
                 # All types which are not found in the array will be converted into strings.
                 # In this way we don't ignore it completely and it will be clear in the end why it looks as it does.
@@ -217,6 +222,9 @@ function ConvertTo-DbaDataTable {
                         $Value.$TimeSpanType
                     }
                 }
+                'DateTime' {
+                    return [System.DateTime]$Value.DateTime
+                }
             }
         }