Update dependency phoenix_test_playwright to ~> 0.16.0

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
phoenix_test_playwright (source)	dev	minor	~> 0.15.0 → ~> 0.16.0

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Release Notes

ftes/phoenix_test_playwright (phoenix_test_playwright)

v0.16.0

Added

• Support phoenix_test v0.12.1:
  • Target links, buttons, form controls, and assertions via aria-label and single-reference aria-labelledby using Playwright's native locators.

Changed

• Document where Playwright's accessible-name and label-locator semantics intentionally differ from PhoenixTest's HTML parser.
• Document that select(..., exact_option: false) is unsupported because Playwright selects option labels exactly.
• Isolate Playwright-specific tests with test-local markup instead of a shared LiveView fixture.

Fixed

• Eliminate compiler warnings under Elixir 1.20.
• Match PhoenixTest assertion semantics for label exactness, one-based at positions, title refutations, and Phoenix.HTML.Safe text and values.
• Fix for assert_has(selector, text: ...) failing when a hidden text match precedes a visible one in DOM order (#​194)
• Make click(selector, text) click the selector element containing visible text without hidden duplicate text descendants causing a strictness failure (#​220)
• Wait for browser contexts and browsers to close during graceful ExUnit and application shutdown,
  closing pooled browsers concurrently (#​205)

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