Update CHANGELOG.md to include #3986

CHANGELOG.md

@@ -10,6 +10,7 @@ BUG FIXES:
 * `azurerm_iot_dps` fixed deletion issue when using a service principal [GH-3973]
 * `azurerm_kubernetes_cluster` - the `load_balancer_sku` property is now case insensitive [GH-3958]
 * `azurerm_postgresql_server` - add missing support for version `11.0` [GH-3970]
+* `azurerm_storage_*` - prevent multiple panics when a storage account/resource group cannot be found [GH-3986]
 * `azurerm_storage_account` - fix `enable_advanced_threat_protection` create/read for unsupported regions [GH-3947]
 * `azurerm_storage_table` - now migrates older versions of the resource id to the new format [GH-3932]
 * `azurerm_virtual_machine_scale_set` - the `ssh_keys` property of the `os_profile_linux_config` block now recognizes updates [GH-3837]