This pull request updates the browser testing workflow and related configuration to improve reliability, consistency, and maintainability across UX packages. The main changes include refactoring the browser test workflow to use a matrix strategy for Symfony versions, standardizing dependency installation steps, removing unused dependencies, and renaming the Playwright configuration for easier reuse.

Workflow and CI improvements:

• Refactored .github/workflows/browser-tests.yml to use a matrix strategy for Symfony versions, added concurrency controls to cancel in-progress runs, and split setup steps for JS and PHP dependencies, Docker containers, and E2E app configuration. Artifact uploads now only occur on browser test failures. [1] [2]
• Standardized JS dependency installation across workflows by replacing direct pnpm install commands with named steps (Install root JS dependencies) in code quality, unit test, dist files, and release workflows. [1] [2] [3] [4] [5] [6]

Testing and configuration changes:

• Updated package.json to run browser tests in all workspaces concurrently, removed the unused webdriverio dependency, and improved the test:browser script for workspace aggregation. [1] [2]
• Renamed playwright.config.ts to playwright.config.base.ts, added documentation for usage in UX packages, and improved test matching patterns and output directory configuration. [1] [2]

Dependency management:

• Removed webdriverio from the lockfile and marked many transitive dependencies as optional in pnpm-lock.yaml, reducing the install footprint and improving clarity for unused packages. [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] [16] [17] [18] [19] [20] [21] [22]

These changes make the browser testing workflow more robust and maintainable, ensure consistent dependency installation, and clean up unused or optional packages to streamline CI runs.