[BUG] [SWIFT]: URLSession warns about deprecated Classes with iOS 15

[egesucu]

Bug Report Checklist

• Have you provided a full/minimal spec to reproduce the issue?
• Have you validated the input using an OpenAPI validator (example)?
• Have you tested with the latest master to confirm the issue still exists?
• Have you searched for related issues/PRs?

Description

With iOS 15, URLSession deprecated couple classes in favor of their new usages.

Related Warnings

• URLSessionImplementations.swift:563:22 'UTTypeCreatePreferredIdentifierForTag' was deprecated in iOS 15.0: Use the UTType class instead.
• URLSessionImplementations.swift:563:60 'kUTTagClassFilenameExtension' was deprecated in iOS 15.0: Use UTTagClassFilenameExtension instead.
• URLSessionImplementations.swift:564:32 'UTTypeCopyPreferredTagWithClass' was deprecated in iOS 15.0: Use the UTType class instead.
• URLSessionImplementations.swift:564:69 'kUTTagClassMIMEType' was deprecated in iOS 15.0: Use UTTagClassMIMEType instead.

openapi-generator version

Latest Stable version, 7.4.0

Suggest a fix

Suggested Fix PR

[egesucu]

PR opened: #18330