feat: added support for visionOS platform

[desusai7]

📋 Changes

feat: added support for visionOS platform

• Added a visionOS framework target and unit tests target for the framework.
• Added a visionOS sample app and linked it to the unit tests target.
• Updated all the ruby gems including cocoapods to support visionOS platform.
• Upgraded Xcode to version 15.2 and macos runner to 13-x-large to support visionOS and its simulators.
• Dropped support for xcode 14, swift version 5.7, 5.8, and now the minimum required version of Xcode is 15 and Swift is 5.9. (This is done to support visonOS)
• Dropped support for iOS 13 & tvOS 13 platforms as per our support policy to support only last 4 major versions of any platform including the current major version.
• CI checks for visionOS will be tackled as part of PR ci: added ci checks for visionOS platform #217 later as there are some issues with visionOS simulator on CI pipeline.

✅ Checklist

• All new/changed/fixed functionality is covered by tests (or N/A)
• I have added documentation for all new/changed functionality (or N/A)

[Widcket]

Do the list of platforms in Platforms.swift need updating? https://github.com/auth0/SimpleKeychain/blob/master/Package.swift#L6

[desusai7]

Do the list of platforms in Platforms.swift need updating? https://github.com/auth0/SimpleKeychain/blob/master/Package.swift#L6

Tracking this in separate PR raised just now here as we will have to bump up the minimum supported swift version to 5.9 and drop support for Xcode 14 as well. I am considering bumping up the deployment targets of all the platforms to get rid of the versions which were not supported by apple anymore.

[Widcket]

Tracking this in separate PR raised just now #218 as we will have to bump up the minimum supported swift version to 5.9 and drop support for Xcode 14 as well. I am considering bumping up the deployment targets of all the platforms to get rid of the versions which were not supported by apple anymore.

I'd suggest doing that first, and then updating the list of platforms in Platforms.swift here (on this PR), as bumping up the minimum supported swift version to 5.9 (and dropping Xcode 14) is a prerequisite.

[desusai7]

Tracking this in separate PR raised just now #218 as we will have to bump up the minimum supported swift version to 5.9 and drop support for Xcode 14 as well. I am considering bumping up the deployment targets of all the platforms to get rid of the versions which were not supported by apple anymore.

I'd suggest doing that first, and then updating the list of platforms in Platforms.swift here (on this PR), as bumping up the minimum supported swift version to 5.9 (and dropping Xcode 14) is a prerequisite.

Done that, Can you please take a look again now ?