Summary of changes
Changes introduced in this pull request:
Restore executor configuration for zio-grpc. It was removed in https://github.com/LesnyRumcajs/grpc_bench/pull/349/files#r1233541750 but the assumption that it wasn't supported was incorrect. It is quite important because the default executor gives pretty bad results (zio should give results similar to fs2).
Summary of changes Changes introduced in this pull request: