fix: Do not have empty AUTOLINKED_LIBRARIES

[cortinico]

Summary:

When working on TM CXX Autolinking I forgot to return the value here, and this results in AUTOLINKED_LIBRARIES CMake variable being empty. Effectively we're not linking against anything then, which is causing build failures in OSS.
See:

• [0.74.0-rc.0] Specs are generated but not correctly linked to appmodules facebook/react-native#43145

Test Plan:

Tested against RNTA reporducer by @tido64

Checklist

• Documentation is up to date to reflect these changes.
• Follows commit message convention described in CONTRIBUTING.md

[cortinico]

@thymikee @szymonrybczak we would need a CLI bump on the 0.74 release branch for this one (+ the fix should also be on main).

[thymikee]

Published v13.6.1 with this fix. Will make a major bump for the main branch later on

[WoLewicki]

Hey, I just spent about 4 hours trying to make react-native-screens compile on new arch on 0.74.0-rc.0 just to find out that this was the problem 😅

[cortinico]

Hey, I just spent about 4 hours trying to make react-native-screens compile on new arch on 0.74.0-rc.0 just to find out that this was the problem 😅

Sorry :'(