[Snyk] Upgrade stylus from 0.49.3 to 0.54.7

[snyk-bot]

Snyk has created this PR to upgrade stylus from 0.49.3 to 0.54.7.

ℹ️ Keep your dependencies up-to-date. This makes it easier to fix existing vulnerabilities and to more quickly identify and fix newly disclosed vulnerabilities when they affect your project.

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• The recommended version is 17 versions ahead of your current version.
• The recommended version was released 8 months ago, on 2019-08-21.

Release notes

Package name: stylus

• 0.54.7 - 2019-08-21
  

  Fix bug in hash access

• 0.54.6 - 2019-08-20
  
  • Fix issue with cos & sin not stripping rad unit. #2284
  • Fix: handle empty at-rules #2416
  • Define function arguments explicitly #2417
  • Do not use the deprecated Buffer() constructor #2424
  • Fix issues #2411
  • Use mkdir() recursive option instead of mkdirp()
  • Fix no such directory error in Stylus Executable #2421
  • Fixed define column for mixin #2456
  • Fix work with hash #2453
  • Extend in block level import #2270
  • Fix: check whether captureStackTrace exists #2394
  • Make prefix-classes work with partial and range refs in selectors #2278
  • Extend length method to work with strings #2110
  • add quiet flag to have a more "quiet" output. #2088
  • Support for cssnext nested at-rule syntax (apply, nested) #2335
• 0.54.5 - 2016-04-27
  

  0.54.5

• 0.54.4 - 2016-04-27
  

  0.54.4

• 0.54.3 - 2016-04-26
  

  0.54.3

• 0.54.2 - 2016-03-11
  

  merge dev

• 0.54.0 - 2016-03-05
  
  • dev: (21 commits)
    Fixed History for 0.54.0
    History up
    Evaluate variables in current-media function. Fixes #2128
    Undesired spaces with partial reference selector using ranges. Fixes #2133
    Slightly clarified an issue with combinators at ranges in partial references, re: #2134
    Validate regexp flags for match function
    Fix bug with evaluating default arguments
    Undesired spaces with partial reference selector using ranges. Fixes #2133
    Fixed bug with selectors() function. Closes #2130
    Don't parse empty imports
    Wrong errors with --include-css and --resolve-url used concurrently. Fixes #2125
    misc fixes
    Docs and History up
    SelectorParser: Added initial reference selector
    BIFs: expose "url" function by "embedurl"
    Updated history
    Bump version
    BIFs: Added "index" function
    Updated docs that where merged incorrectly
    added a slice function
    ...
• 0.53.0 - 2015-12-14
  

  0.53.0

• 0.52.4 - 2015-09-04
  

  0.52.4

• 0.52.3 - 2015-09-03
• 0.52.2 - 2015-09-03
• 0.52.1 - 2015-09-03
• 0.52.0 - 2015-07-19
• 0.52.0-alpha - 2015-07-15
• 0.51.1 - 2015-04-28
• 0.51.0 - 2015-04-23
• 0.50.0 - 2015-02-05
• 0.49.3 - 2014-11-06

from stylus GitHub release notes

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