for #32711 # Details This PR fixes an issue where batch scripts that are canceled after starting may sometimes continue to be displayed in the "started" list rather than moving to "finished". # Checklist for submitter If some of the following don't apply, delete the relevant line. - [ ] Changes file added for user-visible changes in `changes/`, `orbit/changes/` or `ee/fleetd-chrome/changes`. See [Changes files](https://github.com/fleetdm/fleet/blob/main/docs/Contributing/guides/committing-changes.md#changes-files) for more information. - [X] Input data is properly validated, `SELECT *` is avoided, SQL injection is prevented (using placeholders for values in statements) - [X] If paths of existing endpoints are modified without backwards compatibility, checked the frontend/CLI for any necessary changes ## Testing - [X] Added/updated automated tests Added new test which fails without the fix, and passes with it. - [X] Where appropriate, [automated tests simulate multiple hosts and test for host isolation](https://github.com/fleetdm/fleet/blob/main/docs/Contributing/reference/patterns-backend.md#unit-testing) (updates to one hosts's records do not affect another) - [X] QA'd all new/changed functionality manually