Update harfbuzz to 14.2.0

[mattleibow]

Update harfbuzz native dependency from 8.3.1 to 14.2.0.

Fixes #3686

Changes:

• Updated externals/skia submodule (points to mono/skia dev/update-harfbuzz-14 branch)
• Updated cgmanifest.json with new version

Required skia PR: mono/skia#241

Build verified: macOS arm64 native build succeeds.
Tests verified: All 5663 tests pass (12 skipped for hardware reasons).

[github-actions]

📦 Try the packages from this PR

Warning

Do not run these scripts without first reviewing the code in this PR.

Step 1 — Download the packages

bash / macOS / Linux:

curl -fsSL https://raw.githubusercontent.com/mono/SkiaSharp/main/scripts/get-skiasharp-pr.sh | bash -s -- 4035

PowerShell / Windows:

iex "& { $(irm https://raw.githubusercontent.com/mono/SkiaSharp/main/scripts/get-skiasharp-pr.ps1) } 4035"

Step 2 — Add the local NuGet source

dotnet nuget add source ~/.skiasharp/hives/pr-4035/packages --name skiasharp-pr-4035

More options

Option	Description
--successful-only / -SuccessfulOnly	Only use successful builds
--force / -Force	Overwrite previously downloaded packages
--list / -List	List available artifacts without downloading
--build-id ID / -BuildId ID	Download from a specific build

Or download manually from Azure Pipelines — look for the nuget artifact on the build for this PR.

Remove the source when you're done:

dotnet nuget remove source skiasharp-pr-4035

[github-actions]

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