[19.0] [MIG] base_import_async: migrate

[tishmen]

Scope:

• base_import_async only

Depends on:

• [19.0] [MIG] queue_job: migrate + tests #840

Summary:

• Migrate to Odoo 19.

Temporary references:

• test-requirements.txt adds a temporary dependency to the base PR for CI/runboat. (This will be removed once the base PR merges.)

Pre-commit:

• Ran locally before opening; auto-fixes committed.

Tests:

• Local install may be skipped where core base_import is absent; CI on OCA infra will validate.

[sbidoul]

/ocabot migration base_import_async