ci: macOS uses Swiftly

Author: NeedleInAJayStack

.github/workflows/test.yml

@@ -7,9 +7,10 @@ jobs:
   macos-test:
     runs-on: macos-latest
     steps:
-      - uses: maxim-lobanov/setup-xcode@v1
+      - name: Install Swift
+        uses: vapor/[email protected]
         with:
-          xcode-version: latest
+          toolchain: latest
       - uses: actions/checkout@v4
       - name: Darwin build & test
         run: swift test --enable-all-traits --skip IntegrationTests