fix(ci): upgrade Playwright to 1.61.0

[asblanco]

STACKS-902 Upgrade Playwright so CI can return to a floating Node pin

This ports STACKS-902 to v2: Playwright and the visual-test Docker image target 1.61.0, CI returns to the floating Node LTS pin, and v2 visual baselines are regenerated from the CI amd64/jammy artifact.

Acceptance criteria:

• AC 1 - Current runtime: Playwright-dependent CI jobs run on a current Node with no exact 24.15.0 pin and pass.
• AC 2 - Aligned visual environment: Playwright and the visual-test browser environment both target 1.61.0.
• AC 3 - Trustworthy baselines: Visual-regression baselines are regenerated and reviewed.

Manual testing

CI is the authoritative validation for this change. The PR checks should pass, including Visual Regression Tests.

[changeset-bot]

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Latest commit: 5ef1ac5

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