Issue #3485309 by cmlara: Ajax method 'replace' removed, use 'replaceWith'

Closes #3485309

src/Form/VaultConfigForm.php

@@ -121,7 +121,7 @@ final class VaultConfigForm extends ConfigFormBase {
       '#ajax' => [
         'callback' => [get_class($this), 'buildAjaxAuthPluginForm'],
         'wrapper' => 'vault-auth-plugin-config-form',
-        'method' => 'replace',
+        'method' => 'replaceWith',
         'effect' => 'fade',
       ],
     ];
@@ -179,7 +179,7 @@ final class VaultConfigForm extends ConfigFormBase {
       '#ajax' => [
         'callback' => [get_class($this), 'buildAjaxLeaseStorageForm'],
         'wrapper' => 'vault-lease-storage-plugin-config-form',
-        'method' => 'replace',
+        'method' => 'replaceWith',
         'effect' => 'fade',
       ],
     ];