Update python-streamz to version 0.6.4 / rev 9 via SR 999153
https://build.opensuse.org/request/show/999153
by user StevenK + dimstar_suse
- Update to 0.6.4:
* No upstream changelog.
- Drop patch streamz-pr434-asyncdask.patch:
* Included upstream.
- Add patch support-new-distributed.patch:
* Also import cleanup when using loop, since distributed forces
calling it in your own context now.
- Ignore graph tests due to weird failures.