SC-2677: Add new GitHub trigger event option & pipeline values (#9753)

* Add new GitHub trigger event option

* Update pipeline values list

* Update github-trigger-event-options.adoc

* Update pipeline-values.adoc

* Update pipeline-values.adoc

Author: BeFunes

docs/guides/modules/ROOT/partials/pipelines-and-triggers/pipeline-values.adoc

@@ -485,6 +485,20 @@ d| [.nowrap]#GitHub App#
 | [.circle-green]#**Yes**#
 | [.circle-red]#**No**#
 
+| `pipeline.event.github.comment.body`
+d| [.nowrap]#GitHub App#
+| Boolean
+| The pull request comment body with leading/trailing whitespace removed, if a pipeline was triggered via PR comment. For pipelines triggered in other ways, this value is undefined.
+| [.circle-green]#**Yes**#
+| [.circle-red]#**No**#
+
+| `pipeline.event.github.sender.type`
+d| [.nowrap]#GitHub App#
+| String
+| The type of GitHub user that emitted the event triggering the pipeline. Possible values are `User`, `Organization`, and `Bot`.
+| [.circle-green]#**Yes**#
+| [.circle-red]#**No**#
+
 | `pipeline.deploy.component_name`
 d| [.nowrap]#GitHub App#
 | String

docs/guides/modules/orchestrate/pages/github-trigger-event-options.adoc

@@ -54,6 +54,7 @@ GitHub App triggers allow you to define the work to do (pipeline) when an event
 * *PR marked ready for review*: Trigger a pipeline when a PR is taken out of draft mode and marked ready for review. See the link:https://docs.github.com/en/webhooks/webhook-events-and-payloads?actionType=review_requested#pull_request[GitHub docs for pull request review requested].
 * *"run-ci" label added to PR*: Trigger a pipeline when a label "run-ci" is added to a PR. See the link:https://docs.github.com/en/webhooks/webhook-events-and-payloads?actionType=labeled#pull_request[GitHub docs for pull request labelled].
 * *Pushes to open non-draft PRs*: Trigger a pipeline when there is a push to a branch with an open PR that is not in draft mode.
+* *PR comment is exactly "run-ci"*: Trigger a pipeline when the comment "run-ci" is added to a pull request. This works for general PR comments (link:https://docs.github.com/en/webhooks/webhook-events-and-payloads#issue_comment[`issue_comment` events]) and inline code comments (link:https://docs.github.com/en/webhooks/webhook-events-and-payloads#pull_request_review_comment[`pull_request_review_comment` events]). It does *not* work for comments added in the top-level comment field when submitting a review (link:https://docs.github.com/en/webhooks/webhook-events-and-payloads#pull_request_review[`pull_request_review` events]).
 
 NOTE: **Forked pull requests** never trigger GitHub App pipelines.