Update availability

Co-authored-by: Tina L <49205802+itingliu@users.noreply.github.com>

Author: FranzBusch

Proposals/NNNN-random-uuid.md

@@ -34,7 +34,7 @@ This proposal adds a new static method to the `UUID` type to generate new random
 ///
 /// - Parameter generator: The random number generator to use when creating the new random value.
 /// - Returns: A random UUID.
-@available(FoundationPreview 6.2, *)
+@available(FoundationPreview 6.3, *)
 public static func random(
     using generator: inout some RandomNumberGenerator
 ) -> UUID

Sources/FoundationEssentials/UUID.swift

@@ -81,7 +81,7 @@ public struct UUID : Hashable, Equatable, CustomStringConvertible, Sendable {
     ///
     /// - Parameter generator: The random number generator to use when creating the new random value.
     /// - Returns: A random UUID.
-    @available(FoundationPreview 6.2, *)
+    @available(FoundationPreview 6.3, *)
     public static func random(
         using generator: inout some RandomNumberGenerator
     ) -> UUID {