Use windows-2019

Author: marcprux

.github/workflows/ci.yml

@@ -26,7 +26,7 @@ jobs:
       - name: "Test Swift Package iOS"
         run: xcodebuild test -sdk "iphonesimulator" -destination "platform=iOS Simulator,name=iPhone 15" -scheme "$(xcodebuild -list -json | jq -r '.workspace.schemes[-1]')"
   windows:
-    runs-on: windows-latest
+    runs-on: windows-2019
     steps:
       - uses: compnerd/gha-setup-swift@main
         with: