fix: fix broken import in CleanSandboxStoreTask

Use diracx.tasks.depends instead of the non-existent .depends module.
Populate jobs/__init__.py to re-export CleanSandboxStoreTask as
expected by the entry point definition.

Author: chrisburr

diracx-tasks/src/diracx/tasks/jobs/__init__.py

@@ -0,0 +1,5 @@
+from __future__ import annotations
+
+from .clean_sandbox_store import CleanSandboxStoreTask
+
+__all__ = ("CleanSandboxStoreTask",)

diracx-tasks/src/diracx/tasks/jobs/clean_sandbox_store.py

@@ -8,13 +8,12 @@
 from diracx.core.settings import SandboxStoreSettings
 from diracx.db.sql import SandboxMetadataDB
 from diracx.logic.jobs.sandboxes import clean_sandboxes
+from diracx.tasks.depends import NoTransaction
 from diracx.tasks.plumbing.base_task import PeriodicBaseTask
 from diracx.tasks.plumbing.enums import Priority, Size
 from diracx.tasks.plumbing.retry_policies import ExponentialBackoff
 from diracx.tasks.plumbing.schedules import CronSchedule
 
-from .depends import NoTransaction
-
 
 @dataclasses.dataclass
 class CleanSandboxStoreTask(PeriodicBaseTask):