AuditList: use half-open interval for time interval

[alxndrsn]

In frontend, the AuditList component uses a closed range for start & end dates.

As described in #1323, getodk/central-frontend#1697, this is not ideal.

The request is handled:

1. frontend
   1. https://github.com/getodk/central-frontend/blob/fb9761ee2f281fb7c6b8757a5869042bf8c70e5b/apps/central/src/components/audit/list.vue#L76-L85
2. backend
   1. https://github.com/getodk/central-backend/blob/ba45b5ff99a076e0a02dc53c793e62d24fa3610a/lib/resources/audits.js#L14-L16
   2. https://github.com/getodk/central-backend/blob/ba45b5ff99a076e0a02dc53c793e62d24fa3610a/lib/model/query/audits.js#L74-L80

Observed

start <= audit.loggedAt <= end

Expected

start <= audit.loggedAt < end+1

Related

• Time range (mis-)expression #1323
• Date ranges: use half-open interval central-frontend#1697