Update setup-ios.md (#2361)

No visible @interface for 'RCTBundleURLProvider' declares the selector 'jsBundleURLForBundleRoot:fallbackResource:'

- jsBundleURLForBundleRoot:fallbackResource: no longer exists on RCTBundleURLProvider

source: https://stackoverflow.com/a/73048366/8215759

Co-authored-by: velimir-jankovic <84719115+velimir-jankovic@users.noreply.github.com>

docs/setup-ios.md

@@ -35,7 +35,7 @@ Once you've acquired the CodePush plugin, you need to integrate it into the Xcod
    - (NSURL *)sourceURLForBridge:(RCTBridge *)bridge
    {
      #if DEBUG
-       return [[RCTBundleURLProvider sharedSettings] jsBundleURLForBundleRoot:@"index" fallbackResource:nil];
+       return [[RCTBundleURLProvider sharedSettings] jsBundleURLForBundleRoot:@"index"];
      #else
        return [CodePush bundleURL];
      #endif