Add .spi.yml for Swift Package Index (#132)

Author: adam-fowler

.github/workflows/soundness.yml

@@ -10,6 +10,7 @@ jobs:
     uses: swiftlang/github-workflows/.github/workflows/soundness.yml@main
     with:
       api_breakage_check_container_image: swift:latest
+      docs_check_container_image: swift:latest
       unacceptable_language_check_enabled: false  # Valkey commands contain unacceptable language
       license_header_check_enabled: false  # Temporarily disable
       format_check_enabled: false  # Temporarily disable

.spi.yml

@@ -0,0 +1,5 @@
+version: 1
+builder:
+  configs:
+    - documentation_targets: [Valkey]
+      swift_version: 6.1