Log Message:
py-more-itertools: updated to 8.6.0

8.6.0
-----
* New itertools
    * :func:`all_unique`
    * :func:`nth_product` and :func:`nth_permutation`

* Changes to existing itertools
    * :func:`chunked` and :func:`sliced` now accept a ``strict`` parameter

* Other changes
    * Python 3.5 has reached its end of life and is no longer supported.
    * Python 3.9 is officially supported.
    * Various documentation fixes