make same serialization changes for metadataquery

This MR makes the same serialization changes to MetadataQuery for fields that are time values.

geomagio/api/db/MetadataDatabaseFactory.py

@@ -43,9 +43,9 @@ class MetadataDatabaseFactory(object):
             channel,
             location,
             data_valid,
-            status,
             metadata,
-        ) = params.datetime_dict().values()
+            status,
+        ) = params.model_dump().values()
         if id:
             query = query.where(table.c.id == id)
         if category: