Fix issue with `generate-datomic-database-report` command line utility

[mgrbyte]

When running this command, it fails to complete, exiting with the following error:

ClassCastException datomic.db.Function cannot be cast to datomic.db.Attribute  datomic.datalog/fn--5316 (datalog.clj:346)

This is due to idents in the following namspaces not working with the datalog query:

• datomic.*
• db.*
• wb.*

[mgrbyte]

Superseded by #15