Ivan Giuliani ae590c4712
[Ruby] Add support for populating a gem metadata (#16872)
* [Ruby] Add support for gems metadata

This defaults to an empty hash, but can be overridden with any custom
object by the callers via the `gemMetadata` property.

* Regenerate samples

The gemspecs files will now include a metadata field
2023-10-23 22:05:19 +08:00
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