RxSwift 6.1

Thanks to @iDevid, @marcelofabri, @faimin and @danielt1263 for their contributions to this release 🤘 💯

Breaking Changes 🔥

• Deprecate withUnretained for Driver

Note: It is extremely rare to ship a breaking change in a patch release, but this is a relatively fresh feature with unusual circumstances. For the full story, see #2290.

Other changes 🆕

• Add new subscribe(with:onNext:onError:onCompleted:onDisposed:) alternatives to withUnretained. This exists for all traits and types: Observable, Driver, Signal, Infallible, Completable, Single, Maybe #2290
• Reactive now supports structs and value-types again, with the dynamic look-up specifically dealing with AnyObjects #2285
• Fix xcframework support for RxCocoa (Drag in new RxCocoaRuntime.xcframework alongside RxCocoa)
• Freeze MaybeEvent and CompletableEvent #2271 #2272
• Fix missing RxCocoaRuntime.h header in RxCocoa podspec #2281
• Remove invalid libswiftXCTest.dylib linking to support Xcode 12.5
• Print URLRequest body httpBody, regardless of HTTP Method #2288