Added unique() to some factory properties

[marcusmoore]

Description

This PR adds the unique() modifier to a few factory properties that need to be unique.

This should fix the very rare occurrence of incorrect test failures.

Type of change

• Bug fix (non-breaking change which fixes an issue) ❓

[shortcut-integration]

This pull request has been linked to Shortcut Story #23715: Fix flaky webhook tests.

[what-the-diff]

PR Summary

• Enhanced Uniqueness in the 'Name' Field Among Various Factories
  The field for 'name' in multiple areas like Company, Custom Field, Custom Fieldset, Depreciation, and Manufacturer has been altered. A unique value generated by Faker->catchPhrase() is now used, enhancing the distinctiveness and reducing any overlaps.

• Unique Username Creation in UserFactory
  The 'username' field within the UserFactory has been reformed. It now leverages Faker->username() to create unique usernames, thereby improving the system's way of identifying and managing users.