try a more popular setup-swift action

Author: mdepinet

.github/workflows/check.yaml

@@ -10,7 +10,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
-      - uses: SwiftyLab/setup-swift@latest  # GH actions currently only have Swift 5.10.0
+      - uses: swift-actions/setup-swift@v2.1.0  # GH actions currently only have Swift 5.10.0
         with:
           swift-version: "6.0.0"