Fix tests for older CLIs

extensions/ql-vscode/test/vscode-tests/cli-integration/debugger/debugger.test.ts

@@ -179,6 +179,10 @@ describeWithCodeQL()("Debugger", () => {
   });
 
   it("should pass additionalArgs through to query server", async () => {
+    if (!(await cli.cliConstraints.supportsNewQueryServerForTests())) {
+      // Only works with the new query server.
+      return;
+    }
     await withDebugController(appCommands, async (controller) => {
       await controller.startDebugging(
         {