chore(dev-deps): update playwright and its eslint plugin

[sjinks]

Description

This PR updates @playwright/test and eslint-plugin-playwright to their latest versions.

This fixes the freezing of npx playwright install that affects all E2E CI jobs.

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• This change works and has been tested locally or in Codespaces (or has an appropriate fallback).
• This change has relevant unit tests (if applicable).
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[Copilot]

Pull request overview

Updates Playwright-related dev dependencies for the E2E test suite to newer versions to address the npx playwright install freeze impacting E2E CI jobs.

Changes:

• Bump @playwright/test to ^1.60.0 (and corresponding playwright / playwright-core lock entries).
• Bump eslint-plugin-playwright to ^2.10.4 (and update its transitive globals dependency in the lockfile).

Reviewed changes

Copilot reviewed 1 out of 2 changed files in this pull request and generated no comments.

File	Description
tests/e2e/package.json	Updates the E2E suite’s devDependency version ranges for Playwright and its ESLint plugin.
tests/e2e/package-lock.json	Updates resolved dependency graph to Playwright 1.60.0 and eslint-plugin-playwright 2.10.4, including updated engine requirements and transitive deps.

Files not reviewed (1)

• tests/e2e/package-lock.json: Generated file

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