Bump SkiaSharp from 3.119.1 to 3.119.4

[dependabot]

Updated SkiaSharp from 3.119.1 to 3.119.4.

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Summary by cubic

Updates SkiaSharp from 3.119.1 to 3.119.4 in the BrowserBookmark plugin to pick up upstream bug fixes and stability improvements. No application code changes in our repo.

• Summary of changes

  • Changed: Updated SkiaSharp package reference in Plugins/Flow.Launcher.Plugin.BrowserBookmark/Flow.Launcher.Plugin.BrowserBookmark.csproj from 3.119.1 to 3.119.4; rendering continues to use the same paths with patched internals.
  • Added: No new logic, APIs, or behavior introduced in our code.
  • Removed: No logic or behavior removed.
  • Memory: No expected impact; patch-level update only. Binary size or allocations may vary slightly due to upstream fixes.
  • Security: Low risk; patch may include upstream fixes. No new permissions or attack surface introduced by this change.
  • Tests: No new unit tests added; existing tests (and CI) continue to cover rendering-related paths.

• Release Note
  Updated the graphics library to the latest patch for improved stability; no user-visible changes.

^{Written for commit 2348c8a. Summary will update on new commits. Review in cubic}