Use new provider api for images in RNTester (facebook#26990)

Summary:
Local assets do not work in release mode since they rely on `RCTLocalAssetImageLoader`. Since converting image native modules to turbo modules the old loading method no longer works. This uses the new api in RNTester.

## Changelog

[Internal] [Fixed] - Use new provider api for images in RNTester
Pull Request resolved: facebook#26990

Test Plan: Tested that local images work in RNTester images example in release mode

Differential Revision: D18174117

Pulled By: cpojer

fbshipit-source-id: 71f1dc597742c6d41c57ad20a1221e85dc63ba2f

RNTester/RNTester/AppDelegate.mm

@@ -13,6 +13,9 @@
 #import <React/RCTCxxBridgeDelegate.h>
 #import <React/RCTJavaScriptLoader.h>
 #import <React/RCTLinkingManager.h>
+#import <React/RCTImageLoader.h>
+#import <React/RCTLocalAssetImageLoader.h>
+#import <React/RCTGIFImageDecoder.h>
 #import <React/RCTRootView.h>
 
 #import <cxxreact/JSExecutor.h>
@@ -142,6 +145,13 @@ - (Class)getModuleClassFromName:(const char *)name
 
 - (id<RCTTurboModule>)getModuleInstanceFromClass:(Class)moduleClass
 {
+  if (moduleClass == RCTImageLoader.class) {
+    return [[moduleClass alloc] initWithRedirectDelegate:nil loadersProvider:^NSArray<id<RCTImageURLLoader>> *{
+      return @[[RCTLocalAssetImageLoader new]];
+    } decodersProvider:^NSArray<id<RCTImageDataDecoder>> *{
+      return @[[RCTGIFImageDecoder new]];
+    }];
+  }
   // No custom initializer here.
   return [moduleClass new];
 }