Update CHANGELOG.md hashicorp#24921

CHANGELOG.md

@@ -21,6 +21,7 @@ BUG FIXES:
 
 * `azurerm_cognitive_deployment` - the `version_upgrade_option` property can not be updated without creating a new resource [GH-24922]
 * `azurerm_data_protection_backup_vault` - support or the `soft_delete` and `retention_duration_in_days` properties [GH-24775]
+* `azurerm_data_factory_pipeline` - correctly handle incorrect header values [GH-24921]
 * `azurerm_kusto_cluster` - `optimized_auto_scale` is now updated after `sku` has been updated [GH-24906]
 * `azurerm_key_vault_certificate` - will now only update the `lifetime_action` of the certificate block unless otherwise required [GH-24755]
 * `azurerm_linux_virtual_machine_scale_set` - correctly include `public_ip_prefix_id` during updates [GH-24939]