[IMP] queue_job: avoid deprecation warning about datetime utcnow()

datetime.datetime.utcnow() is now deprecated and should be replaced by datetime.datetime.now() (optional TZ parameter).
As the original _odoo_now() doesn't contain the Timezone, the parameter datetime.UTC is not added into this improvement

Author: acsonefho

queue_job/jobrunner/runner.py

@@ -139,7 +139,6 @@
        of running Odoo is obviously not for production purposes.
 """
 
-import datetime
 import logging
 import os
 import selectors
@@ -181,15 +180,10 @@ def _channels():
     )
 
 
-def _datetime_to_epoch(dt):
+def _odoo_now():
     # important: this must return the same as postgresql
     # EXTRACT(EPOCH FROM TIMESTAMP dt)
-    return (dt - datetime.datetime(1970, 1, 1)).total_seconds()
-
-
-def _odoo_now():
-    dt = datetime.datetime.utcnow()
-    return _datetime_to_epoch(dt)
+    return time.time()
 
 
 def _connection_info_for(db_name):