Update .spi.yml to use Swift 6

Jeehut · Jeehut · commit 50ef043ba002 · 2024-10-30T08:00:03.000+01:00
diff --git a/.spi.yml b/.spi.yml
@@ -2,3 +2,4 @@ version: 1
 builder:
   configs:
     - documentation_targets: [HandySwift]
+      swift_version: 6.0
