chore(deps): update css_parser requirement from ~> 1.11 to >= 1.11, < 3.0

[dependabot]

Updates the requirements on css_parser to permit the latest version.

Changelog

Sourced from css_parser's changelog.

Version v1.12.0

• Improve exception message for missing value #131
• :rule_set_exceptions option added #132

Version 1.11.0

• Do not combine border styles width/color/style are not all present

Version 1.10.0

• Allow CSS functions to be used in CssParser::RuleSet#expand_dimensions_shorthand! #126

Version 1.9.0

• Misc cleanup #122

Version 1.8.0

• Internal refactoring around ruleset diff

Version 1.7.1

• Force UTF-8 encoding; do not strip out UTF-8 chars. #106

Version 1.7.0

• No longer support ruby versions 1.9 2.0 2.1
• Memory allocation improvements

Version 1.6.0

• Handles font-size/ line-height shorthand with spaces

Version 1.5.0

• Extended color keywords support (https://www.w3.org/TR/css3-color/).
• remove_rule_set! method added.
• :capture_offsets feature added.

Version 1.4.10

• Include uri in RemoteFileError message.
• Prevent to convert single declarations to their respective shorthand.
• Fix Ruby warnings.

Version 1.4.9

• Support for vrem, vh, vw, vmin, vmax and vm box model units.
• Replace obsolete calls with actual ones.

... (truncated)

Commits

• c4545cf v1.12.0
• 1c62e61 allow ruby version
• 0bcc819 Merge pull request #131 from markedmondson/better-exception
• 96ec6cf Merge branch 'master' into better-exception
• d6a04b3 Merge pull request #132 from markedmondson/swallow-rule-set-exceptions
• b75efe1 Add Changelog
• 1ee4c48 Allow rule set argument exceptions to be muted
• 69927ce Add changelog
• cc6e61b Return the property value in an empty value rule set
• See full diff in compare view

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