# What this PR does
This is a follow up to #2502 which started to remove logic to
"archiving" alert groups. This PR:
- removes all references to `AlertGroup.is_archived` and marks the
column as deprecated. We will remove it in the next release
- removes the `AlertGroup.unarchived_objects` `Manager`
- renames the `AlertGroup.all_objects` `Manager` to `AlertGroup.objects`
## Checklist
- [x] Unit, integration, and e2e (if applicable) tests updated
- [ ] Documentation added (or `pr:no public docs` PR label added if not
required)
- [x] `CHANGELOG.md` updated (or `pr:no changelog` PR label added if not
required)
# What this PR does
Makes Telegram integration consistent with the rest of the system so it
uses the word "alert group" instead of "incident" when referring to
alert groups.
## Checklist
- [x] Tests updated
- [ ] Documentation added (N/A)
- [x] `CHANGELOG.md` updated
