Update @mui/x-data-grid-pro to v7

**Describe the task**
A major version update with some manual adjustments needed to run v7

**Acceptance Criteria**
- [ ] @mui/x-data-grid-pro is updated to v7

**Additional context**
- https://github.com/bcgov/wps/pull/3504
- https://mui.com/x/migration/migration-data-grid-v6/#update-the-license-package

Review the changes and status of pull request 3504, then follow the MUI Data Grid v6-to-v7 migration guide linked in the issue. Confirm that @mui/x-data-grid-pro is on v7 and that the documented license-package adjustment is handled; completion is indicated by the acceptance criterion being met.

Written by the indexing model from the issue text.