Fix bridgeless support on iOS

[Kudo]

Why

solving crash when running with react-native new architecture mode with bridgeless mode

How

in bridgeless mode, react-native does not support fallback for jsCallInvoker and the bridge.jsCallInvoker is nil. the app will crash when accessing null pointer. the pr tries to get jsCallInvoker from turbo module setup in new architecture mode.

Test Plan

$ npx react-native@latest init RN074 --version nightly
$ yarn add @shopify/react-native-skia
$ cd ios
$ RCT_NEW_ARCH_ENABLED=1 pod install
# running app in xcode

[Kudo]

thanks for fixing the syntax. for the pod install error, it looks like related to facebook/react-native#42698 and unrelated to this pr's changes.

[wcandillon]

Thank You @Kudo 🙌🏼 We'll soon update the fabric example project to bridgeless mode so that this is tested on our side in the future.

[Kudo]

thanks @wcandillon! that's not hurry since bridgeless would be more stable from 0.74 (nightly now). especially that the cxxBridge.runtime would be available from 0.74. we are just helping some expo-go vendored modules works on bridgeless for sdk 51.