test: insert record with enums array into schema (#14161) (#14560)
test: insert record with enums array into schema (#14161) (#14560)

Explanation:
  - User.sync(), which references the schema, was executed before the schema exists
  - add an `await` before the schema is created to enforce sequencing/synchronocity
Subtle style change:
  - remove word 'even' from test description

Addresses only PostgreSQL-portion of issue #14161

sequelize/sequelize,sequelize/sequelize,sequelize/sequelize