List tests in Linux CI, take 2

Author: p4checo

.github/workflows/ci.yml

@@ -55,7 +55,9 @@ jobs:
           swift package resolve
       - name: Swift version
         run: swift --version
+      - name: Options
+        run: swift test --help
       - name: List Tests
-        run: swift test --list-tests
+        run: swift test --enable-test-discovery --list-tests
       - name: Test via SwiftPM
-        run: swift test
+        run: swift test --enable-test-discovery