[Android] [Fixed] - Fix fontVariant stylistic sets being ignored in New Architecture

[dragoncodes]

Summary:

During an upgrade of ReactNative and switching to new arch, we noticed that Android is ignoring some fontVariants. Specifically stylistic-{num}. Digging further I noticed that there are stylistic-{num} mappings added to fromRawValue (in packages/react-native/ReactCommon/react/renderer/attributedstring/conversions.h), but are not included for toMapBuffer

Changelog:

[Android] [Fixed] - fontVariants stylistic-{num} not being propagated correctly

Test Plan:

• Added a new free font (FiraCode) that has stylistic features.
• Added Text examples for Android showing with and without stylistic features

Before and after in order:

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[meta-codesync]

@philIip has imported this pull request. If you are a Meta employee, you can view this in D90830140.