Log Message:
py-psutil: updated to 5.6.5

5.6.5
**Bug fixes**
- remove pyproject.toml as it was causing installation issues.

5.6.4
**Enhancements**
- [Linux] added Process.cpu_times().iowait counter, which is the time
  spent waiting for blocking I/O to complete.
- add PEP 517/8 build backend and requirements specification for better
  pip integration.

**Bug fixes**
- [Windows] Process' cmdline(), environ() or cwd() may occasionally fail
  with ERROR_PARTIAL_COPY which now gets translated to AccessDenied.
- [Linux] cpu_affinity() segfaults on CentOS 5 / manylinux.
  cpu_affinity() support for CentOS 5 was removed.
- [AIX] compilation error on AIX 7.2 due to 32 vs 64 bit differences.
- 'type' and 'family' fields returned by net_connections() are not
  always turned into enums.
- [NetBSD] process cmdline() erroneously raise ZombieProcess error if
  cmdline has non encodable chars.
- usage percent may be rounded to 0 on Python 2.
- [Windows] getloadavg() math for calculating 5 and 15 mins values is
  incorrect.
- [Linux] use CC compiler env var if defined.
- [Windows] `NtWow64*` syscalls fail to raise the proper error code
- [OSX] calling close() (in C) on possible negative integers.
- [SunOS] compilation fails on SunOS 5.10.