Add autovacuum of old job vacuum

Unlink is done on done job logs.

--HG-- branch : 15.0

models/job_definition.py

@@ -502,7 +502,6 @@
     def _gc_job_log(self):
         """Unlink old done job logs"""
         for job_definition in self.search([("unlink_delay", "!=", False)]):
-            print(job_definition)
             self.env["external_job.job_log"].search(
                 [
                     ("job_definition_id", "=", job_definition.id),