Support Swift version 6.2.1 (#6338)

Author: SimplyDanny

Source/SwiftLintCore/Models/SwiftVersion.swift

@@ -75,6 +75,8 @@ public extension SwiftVersion {
     static let sixDotOneDotTwo = SwiftVersion(rawValue: "6.1.2")
     /// Swift 6.2
     static let sixDotTwo = SwiftVersion(rawValue: "6.2.0")
+    /// Swift 6.2.1
+    static let sixDotTwoDotOne = SwiftVersion(rawValue: "6.2.1")
 
     /// The current detected Swift compiler version, based on the currently accessible SourceKit version.
     ///

Tests/FrameworkTests/SwiftVersionTests.swift

@@ -3,8 +3,11 @@ import TestHelpers
 import XCTest
 
 final class SwiftVersionTests: SwiftLintTestCase {
+    // swiftlint:disable:next function_body_length
     func testDetectSwiftVersion() {
-#if compiler(>=6.2.0)
+#if compiler(>=6.2.1)
+        let version = "6.2.1"
+#elseif compiler(>=6.2.0)
         let version = "6.2.0"
 #elseif compiler(>=6.1.2)
         let version = "6.1.2"