fix(postgres-test): insert record with enums array into schema (sequelize#14161) (sequelize#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 sequelize#14161

Author: mike-usa

test/integration/dialects/postgres/dao.test.js

@@ -464,9 +464,10 @@ if (dialect.startsWith('postgres')) {
           expect(user.length).to.equal(1);
         });
 
-        it('should be able to insert a new record even with an array of enums in a schema', async function () {
+        it('should be able to insert a new record with an array of enums in a schema', async function () {
           const schema = 'special_schema';
-          this.sequelize.createSchema(schema);
+          await this.sequelize.createSchema(schema);
+
           const User = this.sequelize.define('UserEnums', {
             name: DataTypes.STRING,
             type: DataTypes.ENUM('A', 'B', 'C'),