Log Message:
www/ruby-css-parser: update to 1.19.0

1.19.0 (2024-08-24)

* Deprecate load_uri!, load_file! and load_string! positional arguments over
  keyword argument

* Deprecate add_rule! (positional arguments)and add_rule_with_offsets! for
  add_rule! (keyword argument)

* RuleSet initialize now takes keyword argument, positional arguments are
  still supported but deprecated

* Removed OffsetAwareRuleSet, it's a RuleSet with optional attributes
  filename and offset

* Improved performance of block parsing by using StringScanner

* Improve RuleSet#parse_declarations! performance by using substring search
  istead of regexps