Update python-psutil to 5.6.2
Changelog summarized:
- 5.6.2
- cpu_count(logical=False) uses a second method in order to determine the number of physical CPUs
- provide coloured test output. Also show failures on KeyboardInterrupt.
- various docfixes (always point to python3 doc, fix links, etc.).
- variozs fixes for cpu_freq()
- 5.6.1
- [AIX] psutil doesn't compile on AIX 6.1
- 5.6.0
- in case of error, the traceback message now shows the underlying C function called which failed.
- new Process.parents() method.
- pids() are returned in sorted order.
- 5.5.1
- psutil exceptions' repr() show the internal private module path.
- [AIX] psutil won't compile on AIX 7.1 due to missing header.