add pr thread event (#26909)

content/developers/webhooks-and-events/events/github-event-types.md

@@ -207,6 +207,16 @@ Key | Type | Description
 {% data reusables.webhooks.pull_request_review_comment_event_api_properties %}
 {% data reusables.webhooks.pull_request_review_comment_properties %}
 
+## PullRequestReviewThreadEvent
+
+{% data reusables.webhooks.pull_request_review_thread_short_desc %}
+
+{% data reusables.webhooks.events_api_payload %}
+
+### Event `payload` object
+
+{% data reusables.webhooks.pull_request_thread_properties %}
+
 ## PushEvent
 
 {% data reusables.webhooks.push_short_desc %}

content/developers/webhooks-and-events/webhooks/webhook-events-and-payloads.md

@@ -1060,6 +1060,28 @@ Deliveries for `review_requested` and `review_request_removed` events will have
 
 {{ webhookPayloadsForCurrentVersion.pull_request_review_comment.created }}
 
+## pull_request_review_thread
+
+{% data reusables.webhooks.pull_request_review_thread_short_desc %}
+
+### Availability
+
+- Repository webhooks
+- Organization webhooks
+- {% data variables.product.prodname_github_apps %} with the `pull_requests` permission
+
+### Webhook payload object
+
+{% data reusables.webhooks.pull_request_thread_properties %}
+{% data reusables.webhooks.repo_desc %}
+{% data reusables.webhooks.org_desc %}
+{% data reusables.webhooks.app_desc %}
+{% data reusables.webhooks.sender_desc %}
+
+### Webhook payload example
+
+{{ webhookPayloadsForCurrentVersion.pull_request_review_thread.resolved }}
+
 ## push
 
 {% data reusables.webhooks.push_short_desc %}