fix(react-native-host): re-define deprecated bridge methods (#3901)

Author: tido64

.changeset/sour-bikes-yawn.md

@@ -0,0 +1,5 @@
+---
+"@rnx-kit/react-native-host": patch
+---
+
+Re-define deprecated bridge methods for backwards compatibility

packages/react-native-host/cocoa/RNXHostConfig.h

@@ -30,6 +30,11 @@ NS_ASSUME_NONNULL_BEGIN
 /// Handles a fatal error.
 - (void)onFatalError:(NSError *)error;
 
+// MARK: - RCTBridgeDelegate deprecated details (for backwards compatibility) [>=0.84]
+
+- (NSURL *__nullable)sourceURLForBridge:(RCTBridge *)bridge;
+- (NSArray<id<RCTBridgeModule>> *)extraModulesForBridge:(RCTBridge *)bridge;
+
 @end
 
 NS_ASSUME_NONNULL_END