The plugin[1] uses the default message[2]. I would like the option to dynamically set a custom message based on discovered during the build.

Example of the default message

This commit looks good

Example custom messages. There are two customizations I would like to be able to add. The option to append the duration of the build. And an option to populate a build context variable that could be read by this plugin when creating the notification context. I am adding some short circuit logic to a pipeline to skip the build when the changeset doesn't match the when rule and would like to indicate that in the message.

This commit looks good (44s)
Build did not match when criteria  (1s)

[1] https://github.com/jenkinsci/github-scm-trait-notification-context-plugin/blob/1.1/src/main/java/org/jenkinsci/plugins/githubScmTraitNotificationContext/NotificationContextTrait.java#L106
[2] https://github.com/jenkinsci/github-branch-source-plugin/blob/github-branch-source-2.5.8/src/main/java/org/jenkinsci/plugins/github_branch_source/GitHubNotificationContext.java#L183-L207