v0.128.0

## Release v0.128.0 (2026-08-13)

### API Changes
* Add `create_direct_group_member()`, `create_group()`, `create_service_principal()`, `create_user()`, `create_workspace_assignment()`, `delete_direct_group_member()`, `delete_group()`, `delete_service_principal()`, `delete_user()`, `delete_workspace_assignment()`, `get_direct_group_member()`, `get_group()`, `get_service_principal()`, `get_user()`, `get_workspace_assignment()`, `list_direct_group_members()`, `list_groups()`, `list_service_principals()`, `list_transitive_parent_groups()`, `list_users()`, `list_workspace_assignments()`, `update_group()`, `update_service_principal()`, `update_user()` and `update_workspace_assignment()` methods for [a.account_iam_v2](https://databricks-sdk-py.readthedocs.io/en/latest/account/iamv2/account_iam_v2.html) account-level service.
* Add `create_direct_group_member_proxy()`, `create_group_proxy()`, `create_service_principal_proxy()`, `create_user_proxy()`, `create_workspace_assignment_proxy()`, `delete_direct_group_member_proxy()`, `delete_group_proxy()`, `delete_service_principal_proxy()`, `delete_user_proxy()`, `delete_workspace_assignment_proxy()`, `get_direct_group_member_proxy()`, `get_group_proxy()`, `get_service_principal_proxy()`, `get_user_proxy()`, `get_workspace_assignment_proxy()`, `get_workspace_identity_detail()`, `list_direct_group_members_proxy()`, `list_groups_proxy()`, `list_service_principals_proxy()`, `list_transitive_parent_groups_proxy()`, `list_users_proxy()`, `list_workspace_assignments_proxy()`, `update_group_proxy()`, `update_service_principal_proxy()`, `update_user_proxy()`, `update_workspace_assignment_proxy()` and `update_workspace_identity_detail()` methods for [w.workspace_iam_v2](https://databricks-sdk-py.readthedocs.io/en/latest/workspace/iamv2/workspace_iam_v2.html) workspace-level service.
* Add `create_time` and `update_time` fields for `databricks.sdk.service.dashboards.GenieSpace`.
* [Breaking] Change `new_cluster` field for `databricks.sdk.service.jobs.JobCluster` to no longer be required.
* Change `new_cluster` field for `databricks.sdk.service.jobs.JobCluster` to no longer be required.