Resolves#45735.
- [X] Changes file added for user-visible changes in `changes/`,
`orbit/changes/` or `ee/fleetd-chrome/changes`.
## Testing
- [X] Added/updated automated tests
- [x] QA'd all new/changed functionality manually.
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
* **New Features**
* Team settings can now enable or disable Software Inventory through API
updates.
* Partial updates preserve existing settings when the Software Inventory
option is omitted.
* Software Inventory configuration can be re-enabled after being
disabled.
* **Bug Fixes**
* Invalid or null Software Inventory values are handled correctly
without affecting global or Unassigned settings.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->