Hello, I am having problem with the slack notifications. I currently using Airbyte OSS v0.50.7. from UI when I test a Slack webhook It says

Webhook test failed. Please verify that the webhook URL is valid

When I hit the notification API using the following params:

curl --location --request POST '<http://localhost:80002/api/v1/notifications/try>' \
--header 'Authorization: Basic ' \
--header 'Content-Type: application/json' \
--data-raw '{
    "notificationType": "slack",
    "sendOnSuccess": true,
    "sendOnFailure": true,
    "slackConfiguration": {
        "webhook":    "<https://hooks.slack.com/services/><EXTRA_CHARS>"
    },
    "customerioConfiguration": {}
}'

Getting an empty response with 200 status? I see server logs and I see nothing there. Is there a way to fix this.