Apply dictionary date formats on csv downloads when in reference mode

[janette]

ref: 21261

QA Steps

• Set the data dictionary mode to 'reference' https://dkan.ddev.site/admin/dkan/data-dictionary/settings
• Create a data dictionary with a field of type date, set the format to %m/%d/%Y
• Create a dataset with a data file containing a date column that you used in your data dictionary, dates should be in mm/dd/YYYY format
• Use your data dictionary endpoint in the distribution describedBy field
• Save and run import queues
• Visit your dataset, adjust the url to call the streamed download, or use the link below replacing the uuid with your dataset uuid

https://dkan.ddev.site/api/1/datastore/query/505a1f80-7a95-4d9e-8eda-c57efdbf5c19/0/download?&format=csv

• Confirm the resulting csv has the dates in the DD format, not ISO