python3-pyparsing: upgrade 3.1.1 -> 3.1.2

python3-pyparsing: upgrade 3.1.1 -> 3.1.2

Changelog:
===========
- Added 'ieee_float' expression to 'pyparsing.common', which parses float values,
  plus "NaN", "Inf", "Infinity".
- Updated pep8 synonym wrappers for better type checking compatibility.
- Fixed empty error message bug. This _should_ return pyparsing's exception
  messages to a former, more helpful form. If you have code that parses the
  exception messages returned by pyparsing, this may require some code changes.
- Added unit tests to test for exception message contents, with enhancement to
  'pyparsing.testing.assertRaisesParseException' to accept an expected exception message.
- Updated example 'select_parser.py' to use PEP8 names and added Groups for better retrieval
  of parsed values from multiple SELECT clauses.
- Added example 'email_address_parser.py'
- Added example 'directx_x_file_parser.py' to parse DirectX template definitions, and
  generate a Pyparsing parser from a template to parse .x files.
- Some code refactoring to reduce code nesting
- All internal string expressions using '%' string interpolation and 'str.format()'
  converted to f-strings.

Signed-off-by: Wang Mingyu <wangmy@fujitsu.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>