python-dfdatetime-0~20220131-bp155.2.6

- does not need python-six for build
  https://trello.com/c/MO53MocR/143-remove-python3-six

- remove no longer needed explicit BuildRequires
-BuildRequires:  %{python_module devel}
-BuildRequires:  %{python_module pbr >= 4.2.0}

- python-mock is not required for build

- version update to 0~20220131
  * no upstream changelog file found
- try to use %pytest macro again

- update to v0~20200824
  * Extended time elements with copy from datetime object
  * Extended time elements with copy from RFC 822 and 1123 methods
  * Added date and time values factory class for serialization

- update to v0~20200121
  * mandatory for python-dfVFS v0~20200211 support
  * the changelog does not show what change makes this mandatory

- Convert to python3 only

- update to v0~20190517
  * changelog not provided
- Added Requires: python-mock  to allow self-test to be manually run

- update to v0~20180110
  * deprecated a functions
  * added new functions

- update to v0~20170719
  * various improvements including
  new format support
  added sanity checks
- implement python singlespec syntax
- remove the lines that delete *.pyc and *.pyo files,
  they no longer cause problems

- Use python macros for filelists.
  Use hardlinks for fdupes, it's cheaper.

- initial package v0~20160323