Upgrade 3.1.1 to 3.2.1 DB error

You need to check why the migration stops when applying 20211116_1457_8993132179d3_ensure_single_choice_fields_have_item_type.py and later changes.

Make sure the database owner is correctly set (see [1] ) and check the postgres logs for errros.

[1] PostgreSQL Permnission denied "indico db prepare"