py-plumbum: updated to 1.8.0

1.8.0
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* Drop Python 2.7 and 3.5 support, add 3.11 support
* Lots of extended checks and fixes for problems exposed.
* Color: support ``NO_COLOR``/``FORCE_COLOR``
* Commands: New ``iter_lines`` ``buffer_size`` parameter
* Commands: cache remote commands
* SSH: Support reverse tunnels and dynamically allocated ports
* CLI: add ``Set(..., all_markers={"*", "all"})`` and fix support for other separators
* CLI: support future annotations
* Color: fix the ABC
* Exceptions: fix for exception pickling
* Fix for StdinDataRedirection and modifiers

(adam)