fix(config): Change log level for missing config revision (#20762)

Update the log level from `warning` to `debug` when no active
configuration revision is found. This prevents unnecessary warnings in
normal operation scenarios, improving log clarity and relevance.

Fixes #20688

netbox/netbox/config/__init__.py

@@ -82,7 +82,7 @@ class Config:
             revision = ConfigRevision.objects.get(active=True)
             logger.debug(f"Loaded active configuration revision #{revision.pk}")
         except (ConfigRevision.DoesNotExist, ConfigRevision.MultipleObjectsReturned):
-            logger.warning("No active configuration revision found - falling back to most recent")
+            logger.debug("No active configuration revision found - falling back to most recent")
             revision = ConfigRevision.objects.order_by('-created').first()
             if revision is None:
                 logger.debug("No previous configuration found in database; proceeding with default values")