chore: Switching to xcbeautify instead of xcpretty

[ruisebas]

Description

This PR replaces xcpretty with the faster xcbeautify. The change is done mainly because the latest version of xcpretty has an annoying bug that fails to properly display the output when a test fails, rendering it pretty useless.

General Checklist

• Added new tests to cover change, if needed
• Build succeeds with all target using Swift Package Manager
• All unit tests pass
• All integration tests pass
• Security oriented best practices and standards are followed (e.g. using input sanitization, principle of least privilege, etc)
• Documentation update for the change if required
• PR title conforms to conventional commit style
• New or updated tests include Given When Then inline code documentation and are named accordingly testThing_condition_expectation()
• If breaking change, documentation/changelog update with migration instructions

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.