chore: update web test runner and playwright

[TarunAdobe]

Description

This pull request updates several dependencies and configurations to ensure compatibility with the latest Playwright and @web/test-runner packages, addresses ESLint coverage for additional story files, and implements minor code improvements for clarity and standards compliance.

Changes

Dependency Updates

• Playwright:

  • Bumped Docker image in CI from mcr.microsoft.com/playwright:v1.44.0 to v1.53.1.
  • Updated @playwright/test version from ^1.44.0 to ^1.53.1 in package.json.

• @web/test-runner and Related Packages:

  • Updated @web/test-runner from ^0.18.3 to ^0.20.2 in both root and projects/css-custom-vars-viewer/package.json.
  • Updated @web/test-runner-junit-reporter from ^0.7.2 to ^0.8.0.
  • Updated @web/test-runner-playwright from ^0.11.0 to ^0.11.1.
  • Updated @web/test-runner-visual-regression from ^0.9.0 to ^0.10.0.

• Linting and ESLint Configuration

  • Expanded ESLint's file matching to include **/stories/*.ts for better coverage of story files.
  • Code Improvements

• ESM Import Syntax:

  • Changed import assertion for iconsList.json in packages/iconset/stories/icons-demo.ts from assert { type: 'json' } to the newer with { type: 'json' } syntax.

• Visual Regression Command Import:

  • Updated the import path for visualDiff in test/visual/test.ts to reference the correct location under @web/test-runner-visual-regression/browser/commands.

• Formatting:

  • Improved multiline arithmetic formatting in IconsDemo for readability.

Motivation and context

• Keep dependencies up-to-date for security, performance, and compatibility.
• Adopt the latest recommended ESM import syntax.
• Expand linting coverage for better code quality.
• Fix import paths in line with updated packages and best practices.

Related issue(s)

• fixes [Issue Number]

Screenshots (if appropriate)

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Author's checklist

• I have read the CONTRIBUTING and PULL_REQUESTS documents.
• I have reviewed at the Accessibility Practices for this feature, see: Aria Practices
• I have added automated tests to cover my changes.
• I have included a well-written changeset if my change needs to be published.
• I have included updated documentation if my change required it.

---

Reviewer's checklist

• Includes a Github Issue with appropriate flag or Jira ticket number without a link
• Includes thoughtfully written changeset if changes suggested include patch, minor, or major features
• Automated tests cover all use cases and follow best practices for writing
• Validated on all supported browsers
• All VRTs are approved before the author can update Golden Hash

Manual review test cases

• Descriptive Test Statement

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  2. Do this action
  3. Expect this result

• Descriptive Test Statement

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  2. Do this action
  3. Expect this result

Device review

• Did it pass in Desktop?
• Did it pass in (emulated) Mobile?
• Did it pass in (emulated) iPad?

[changeset-bot]

⚠️ No Changeset found

Latest commit: be621c5

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[github-actions]

📚 Branch Preview

• Documentation Site
• Storybook

🔍 Visual Regression Test Results

When a visual regression test fails (or has previously failed while working on this branch), its results can be found in the following URLs:

• Spectrum | Light | Medium | LTR
• Spectrum | Dark | Large | RTL
• Express | Light | Medium | LTR
• Express | Dark | Large | RTL
• Spectrum-two | Light | Medium | LTR
• Spectrum-two | Dark | Large | RTL
• High Contrast Mode | Medium | LTR

Deployed to Azure Blob Storage: pr-5578

If the changes are expected, update the current_golden_images_cache hash in the circleci config to accept the new images. Instructions are included in that file.
If the changes are unexpected, you can investigate the cause of the differences and update the code accordingly.

[github-actions]

Tachometer results

Currently, no packages are changed by this PR...

[github-actions]

🚫 [eslint] <import/no-extraneous-dependencies> _{reported by reviewdog 🐶}
'case' should be listed in the project's dependencies, not devDependencies.

[github-actions]

🚫 [eslint] <notice/notice> _{reported by reviewdog 🐶}
Missing notice header

https://github.com/adobe/spectrum-web-components/blob/cea0e05e5524ee11af1419a980adbe67e10045e7/packages/.eslintrc.json#L1-L136