Build script update
Build script update

Updated script to remove `--platform iOS, tvOS, macOS`

RxSwiftCommunity/RxSwift-Ext,RxSwiftCommunity/RxSwiftExt,RxSwiftCommunity/RxSwift-Ext,RxSwiftCommunity/RxSwiftExt,RxSwiftCommunity/RxSwiftExt