Bump xmldom and react-native in /example-pusher-chatkit#20

dependabot[bot] wants to merge 1 commit intomasterFlyclops/react-native-gifted-chat:masterfrom

dependabot/npm_and_yarn/example-pusher-chatkit/xmldom-and-react-native--removedFlyclops/react-native-gifted-chat:dependabot/npm_and_yarn/example-pusher-chatkit/xmldom-and-react-native--removedCopy head branch name to clipboard