Google Page Speed Insights recommends Leverage browser caching
As these files ain't located on your server you can't do anything about it except wondering why Google Page Speed isn't smart enough to distinguish between on-site resources and external resources. Or why Google itself doesn't do with these files what it suggests should be done with them. I guess, that's some weird kind of paradox ;)

All you could do (highly hypothetically) is to download these files and  add them to your own server and let Drupal use these local copies instead of the remote files. But I assume very strongly that this would break the functionality of these services.