[Test UX]: testing time is confusing when running in parallel

<!-- ⚠️⚠️ Do Not Delete This! bug_report_template ⚠️⚠️ --> <!-- Please read our Rules of Conduct: https://opensource.microsoft.com/codeofconduct/ --> <!-- 🕮 Read our guide about submitting issues: https://github.com/microsoft/vscode/wiki/Submitting-Bugs-and-Suggestions --> <!-- 🔎 Search existing issues to avoid creating duplicates. --> <!-- 🧪 Test using the latest Insiders build to see if your issue has already been fixed: https://code.visualstudio.com/insiders/ --> <!-- 💡 Instead of creating your report here, use 'Report Issue' from the 'Help' menu in VS Code to pre-fill useful information. --> <!-- 🔧 Launch with `code --disable-extensions` to check. --> Does this issue occur when all extensions are disabled?: No <!-- 🪓 If you answered No above, use 'Help: Start Extension Bisect' from Command Palette to try to identify the cause. --> <!-- 📣 Issues caused by an extension need to be reported directly to the extension publisher. The 'Help > Report Issue' dialog can assist with this. --> - VS Code Version: 1.64.2 - OS Version: MacOS 12.2 Steps to Reproduce: 1. Install Playwright Extension: ms-playwright.playwright 2. Clone https://github.com/microsoft/playwright 3. Open repo in VSCode 4. Open file: `examples/todomvc/tests/integration.spec.ts` 5. Right-click on double-green-triangle on line 17 --> `Execute Using Profile...` --> `chromium — todomvc/playwright.config.ts` 6. All tests run instantly in parallel on my 10-core machine (~2 seconds) 7. Testing view shows 9 seconds: <img width="467" alt="image" src="https://user-images.githubusercontent.com/746130/154597591-ab5966bf-70be-4a73-a43e-253fd3fe5e51.png"> It seems like the time is summed up, showing total CPU time, which is unexpected when running in parallel. I would expect to either see 2 seconds or no time at all next to `integration.spec.ts` or `New Todo`. Thanks!