update Cartfile.resolved in Example project

Author: caiyue1993

Example/Cartfile.resolved

@@ -1,3 +1,3 @@
-github "ReactiveX/RxSwift" "4.1.0"
-github "RxSwiftCommunity/RxRealm" "0.7.5"
-github "realm/realm-cocoa" "v3.0.2"
+github "ReactiveX/RxSwift" "5.0.1"
+github "RxSwiftCommunity/RxRealm" "1.0.0"
+github "realm/realm-cocoa" "v3.17.0"