Merge branch '245331-update-integration-docs-introduced-info' into 'master'

Update introduced in for integrations section

See merge request gitlab-org/gitlab!45193

doc/operations/incident_management/integrations.md

@@ -6,7 +6,7 @@ info: To determine the technical writer assigned to the Stage/Group associated w
 
 # Integrations
 
-> - [Introduced](https://gitlab.com/gitlab-org/gitlab/-/issues/13203) in [GitLab Core](https://about.gitlab.com/pricing/) 12.5.
+> [Introduced](https://gitlab.com/gitlab-org/gitlab/-/issues/245331) in [GitLab Core](https://about.gitlab.com/pricing/) 13.5.
 
 With Maintainer or higher [permissions](../../user/permissions.md), you can view
 the list of configured alerts integrations by navigating to