[Swift 6]: Update concept exercises batch 1

[meatball133]

Includes:

• Lasagna
• Wing-quest
• Freelancer-rates

[github-actions]

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[Slarky]

You might want to revert https://github.com/exercism/swift/pull/807/files#diff-af0e0f03e92382b75b64d0b981568f47bc67003effb12ea34f11c59b20888f6a as this is a full working solution with nothing left to code when doing the https://exercism.org/tracks/swift/exercises/freelancer-rates exercise.