Use ruby platform for clickhouse vendored gem

What does this MR do and why?

Use ruby platform for clickhouse vendored gem instead of x86_64-linux

See https://github.com/rubygems/rubygems/issues/3379#issuecomment-1196299629, !124295 (comment 1464887633) and !100799 (diffs, comment 1133500974) for context.

How to set up and validate locally

Numbered steps to set up and validate the change are strongly suggested.

MR acceptance checklist

This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.

• I have evaluated the MR acceptance checklist for this MR.