feat: set FlightDescriptor on FlightDataEncoderBuilder#4101

alamb merged 3 commits intoapache:masterapache/arrow-rs:masterfrom

Weijun-H:set-FlightDescriptor-on-FlightDataEncoderBuilderWeijun-H/arrow-rs:set-FlightDescriptor-on-FlightDataEncoderBuilderCopy head branch name to clipboard