Package.swift does not work after 70780c4bc38e3f9b9875acc41706971057ad072c

[mkm85]

70780c4 introduced

-        .visionOS(.v1),
+        .visionOS(.v2),

This is not available in swift-tools-version:5.9 but requires swift-tools-version:6.0 that means the current Package.swift does not work.

swift package resolve
...
Specs/Package.swift:11:20: error: 'v2' is unavailable
 9 |         .macCatalyst(.v14),
10 |         .tvOS(.v17),
11 |         .visionOS(.v2),
   |                    `- error: 'v2' is unavailable
12 |     ],
13 |     products: [

PackageDescription.SupportedPlatform.VisionOSVersion.v2:4:23: note: 'v2' was introduced in PackageDescription 6.0
2 |   struct VisionOSVersion {
3 | @available(_PackageDescription 6.0)
4 |     public static let v2: SupportedPlatform.VisionOSVersion  }
  |                       `- note: 'v2' was introduced in PackageDescription 6.0
5 | }
6 |

Using either .v1 or swift-tools-version:6.0 fixes the problem, the latter changes the requirements for the consumers, and and there was probably a reason for the bump to .v2.

Right now it does not work at all, bumping to swift-tools-version to 6.0 changes the requirements for the consumers of the library but at least the package would work again, vs having a package which does not work but 'works' on older systems.