Issue #3525207 by sanduhrs: Fix phpcs pipeline

modules/webhook/src/Form/WebhookForm.php

src/Commands/WebhooksCommands.php

src/Controller/WebhookController.php

src/Event/ReceiveEvent.php

src/Event/SendErrorEvent.php

src/Event/SendEvent.php

src/Webhook.php

src/WebhooksService.php

webhooks.info.yml