fix(webhooks): update docblock options for authMethod

Signed-off-by: Hendrik Heil <hendrik@heil.sh>

apps/webhook_listeners/lib/Controller/WebhooksController.php

@@ -110,7 +110,7 @@ class WebhooksController extends OCSController {
 	 * @param ?array<string,mixed> $eventFilter Mongo filter to apply to the serialized data to decide if firing
 	 * @param ?string $userIdFilter User id to filter on. The webhook will only be called by requests from this user. Empty or null means no filtering.
 	 * @param ?array<string,string> $headers Array of headers to send
-	 * @param "none"|"headers"|null $authMethod Authentication method to use
+	 * @param "none"|"header"|null $authMethod Authentication method to use
 	 * @param ?array<string,mixed> $authData Array of data for authentication
 	 *
 	 * @return DataResponse<Http::STATUS_OK, WebhookListenersWebhookInfo, array{}>
@@ -178,7 +178,7 @@ class WebhooksController extends OCSController {
 	 * @param ?array<string,mixed> $eventFilter Mongo filter to apply to the serialized data to decide if firing
 	 * @param ?string $userIdFilter User id to filter on. The webhook will only be called by requests from this user. Empty or null means no filtering.
 	 * @param ?array<string,string> $headers Array of headers to send
-	 * @param "none"|"headers"|null $authMethod Authentication method to use
+	 * @param "none"|"header"|null $authMethod Authentication method to use
 	 * @param ?array<string,mixed> $authData Array of data for authentication
 	 *
 	 * @return DataResponse<Http::STATUS_OK, WebhookListenersWebhookInfo, array{}>