Merge pull request rails#49094 from akhilgkrishnan/activejob-notable-release-note

[skip ci] ActionJob notable changes added to 7.1 release note

Author: rafaelfranca

guides/source/7_1_release_notes.md

@@ -523,6 +523,14 @@ Please refer to the [Changelog][active-job] for detailed changes.
 
 ### Notable changes
 
+*   Add `perform_all_later` to enqueue multiple jobs at once.
+
+*   Add `--parent` option to job generator to specify parent class of job.
+
+*   Add `after_discard` method to `ActiveJob::Base` to run a callback when a job is about to be discarded.
+
+*   Add support for logging background job enqueue callers.
+
 Action Text
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