Use correct Swift 6.1 version

Author: fwal

src/swift-versions.ts

@@ -8,7 +8,7 @@ const VERSIONS_LIST: [string, OS[]][] = [
   ["6.1.3", [OS.MacOS, OS.Ubuntu]],
   ["6.1.2", [OS.MacOS, OS.Ubuntu]],
   ["6.1.1", [OS.MacOS, OS.Ubuntu]],
-  ["6.1.0", [OS.MacOS, OS.Ubuntu]],
+  ["6.1", [OS.MacOS, OS.Ubuntu]],
   ["6.0.3", [OS.MacOS, OS.Ubuntu]],
   ["6.0.2", [OS.MacOS, OS.Ubuntu]],
   ["6.0.1", [OS.MacOS, OS.Ubuntu]],