python-css-parser-1.0.10-bp156.4.3.1

- update to 1.0.10 (boo#1225938):
  * Fix selector specificity calculation for pseudo-classes

- update to 1.0.9:
  * replace deprecated use of cgi.parse_header
  * drop python 3.6 support

- update to 1.0.8:
  * Replace removed assertEquals with assertEqual
  * Upgrade other unittest asserts for clearer error messages
  * tests: adjust exception string checks for python 3.11
  * tests: fix warning about \( and \o being invalid sequences
  * Fix serialization of unknown rules containing comments
- drop relax_error_msg_check.patch (upstream)