Roll third_party/freetype2 from 3bea27612 to af4c2d86d (2 revisions) (#52689)

https://flutter.googlesource.com/third_party/freetype2/+log/3bea27612..af4c2d86d

```
$ git log --format="%ad %ae %s" --date=short 3bea27612..af4c2d86d
2024-05-07 [email protected] Fix macro redefinition warning in macOS
2023-05-04 [email protected] Add support for woff and woff2 fonts
```

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Author: bc-lee

DEPS

@@ -630,7 +630,7 @@ deps = {
    Var('chromium_git') + '/external/github.com/libexpat/libexpat.git' + '@' + '654d2de0da85662fcc7644a7acd7c2dd2cfb21f0',
 
   'src/flutter/third_party/freetype2':
-   Var('flutter_git') + '/third_party/freetype2' + '@' + '3bea2761290a1cbe7d8f75c1c5a7ad727f826a66',
+   Var('flutter_git') + '/third_party/freetype2' + '@' + 'af4c2d86d399b15f31f19aafe49e540578a6be39',
 
   'src/flutter/third_party/skia':
    Var('skia_git') + '/skia.git' + '@' +  Var('skia_revision'),