update react renderers with unified feature flags

Summary:
# changelog:
[General][Changed] - sync React renderers to 18.3.0-canary-03d6f7cf0-20240209

Syncs React renderers to react/react@03d6f7c which is canary for 18.3.0-canary-03d6f7cf0-20240209.

This includes feature flag changes: react/react@36b078c

Reviewed By: javache

Differential Revision: D53704743

fbshipit-source-id: 3f4fd5eddf300217e06b0642acb3c683849c5228

Author: sammy-SC