fix(app, ios-plist): make sure Info.plist exists before processing

Previously there was no dependency stated on Info.plist, so occasionally we would "lose the race"
and attempt to interpolate values prior to it existing

Since ads requires the Info.plist admob ids in the Info.plist, this resulted in crashes on startup occasionally
for users of the admob module

Fixes #5152

packages/app/react-native.config.js

@@ -10,6 +10,7 @@ module.exports = {
             name: '[RNFB] Core Configuration',
             path: './ios_config.sh',
             execution_position: 'after_compile',
+            input_files: ['$(SRCROOT)/$(BUILT_PRODUCTS_DIR)/$(INFOPLIST_PATH)'],
           },
         ],
       },