Open correct tutorial workspace on Windows (#2240)

extensions/ql-vscode/src/helpers.ts

@@ -304,7 +304,7 @@ export async function prepareCodeTour(
         return;
       }
 
-      const tutorialWorkspaceUri = Uri.parse(tutorialWorkspacePath);
+      const tutorialWorkspaceUri = Uri.file(tutorialWorkspacePath);
 
       void extLogger.log(
         `In prepareCodeTour() method, going to open the tutorial workspace file: ${tutorialWorkspacePath}`,

extensions/ql-vscode/test/vscode-tests/no-workspace/helpers.test.ts

@@ -619,7 +619,7 @@ describe("prepareCodeTour", () => {
         expect(executeCommand).toHaveBeenCalledWith(
           "vscode.openFolder",
           expect.objectContaining({
-            path: Uri.parse(tutorialWorkspacePath).fsPath,
+            path: expect.stringMatching(/tutorial.code-workspace$/),
           }),
         );
       });