Propagate Dispose from GlyphTypefaceImpl to dispose SkTypeface

[lindexi]

What does the pull request do?

Disposing the SkTypeface by code that can help the SkTypeface call the sk_refcnt_safe_unref faster.

What is the current behavior?

The SkTypeface will call the sk_refcnt_safe_unref when GC.

What is the updated/expected behavior with this PR?

It will dispose the SkTypeface faster.

How was the solution implemented (if it's not obvious)?

Checklist

• [ ] Added unit tests (if possible)? No need to add
• [ ] Added XML documentation to any related classes? No need to add
• [ ] Consider submitting a PR to https://github.com/AvaloniaUI/avalonia-docs with user documentation

Breaking changes

No

Obsoletions / Deprecations

Fixed issues

No

[avaloniaui-bot]

You can test this PR using the following package version. 11.2.999-cibuild0048477-alpha. (feed url: https://nuget-feed-all.avaloniaui.net/v3/index.json) [PRBUILDID]

[cla-avalonia]

• [x] All contributors have signed the CLA.

[lindexi]

@cla-avalonia agree

[Gillibald]

It looks like we can't update your branch so we can merge it

[lindexi]

@Gillibald Thank you and I updated my branch.

[avaloniaui-bot]

You can test this PR using the following package version. 11.2.999-cibuild0048582-alpha. (feed url: https://nuget-feed-all.avaloniaui.net/v3/index.json) [PRBUILDID]