chore: Update axe core version to 4.12.1

[Chirag Sharma (v-sharmachir)]

Details

This pull request updates the axe-core dependency to version 4.12.1 across the codebase and makes several accessibility improvements to ensure compliance with the new version's stricter label-content-name-mismatch rule. It also updates component ARIA labels so that the visible text content is always a substring of the accessible name, as required by axe-core 4.12.1. Additionally, package versions are incremented where appropriate, and related test snapshots are updated to reflect these changes.

Accessibility improvements:

• Updated ARIA label construction in nav-link-button.tsx, tab-stops-requirements-with-instances.tsx, and rules-with-instances.tsx so that the accessible name always starts with the visible text, appending additional information (such as outcome) in parentheses at the end. This ensures compliance with axe-core 4.12's label-content-name-mismatch rule. [1] [2] [3]
• Added or adjusted spacing in several UI components to ensure the visible text matches the accessible name, including overview-left-nav-link.tsx, test-view-left-nav-link.tsx, tab-stops-minimal-requirement-header.tsx, and minimal-rule-header.tsx. [1] [2] [3] [4]

Dependency and package updates:

• Upgraded axe-core to version 4.12.1 in the root package.json, packages/report/package.json, and packages/ui/package.json. [1] [2] [3]
• Bumped package versions for accessibility-insights-report and accessibility-insights-ui. [1] [2]

Test and snapshot updates:

• Updated or removed test snapshots to reflect the new ARIA label structure and axe-core version, and removed expected label-content-name-mismatch failures that are now resolved. [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] [16] [17] [18]

Motivation

Updating axe-core version from 4.11.3 to 4.12.1

Context

Pull request checklist

• Addresses an existing issue: #0000
• Ran yarn fastpass
• Added/updated relevant unit test(s) (and ran yarn test)
• Verified code coverage for the changes made. Check coverage report at: <rootDir>/test-results/unit/coverage
• PR title AND final merge commit title both start with a semantic tag (fix:, chore:, feat(feature-name):, refactor:). See CONTRIBUTING.md.
• (UI changes only) Added screenshots/GIFs to description above
• (UI changes only) Verified usability with NVDA/JAWS