chore(deps): update pylint requirement from <2,>=1.6.4 to >=1.6.4,<3

[dependabot-preview]

Updates the requirements on pylint to permit the latest version.

Changelog

Sourced from pylint's changelog.

What's New in Pylint 2.3.1?

Release date: 2019-03-02

• Properly pass quote=False to html.escape in the JSON reporter

  Close #2769

What's New in Pylint 2.3.0?

Release date: 2019-02-27

• Protect against NonDeducibleTypeHierarchy when calling semi-private is_subtype

  astroid.helpers.is_subtype raises NonDeducibleTypeHierarchy when it cannot infer
  the base classes of the given types, but that makes sense in its context given that
  the method is mostly used to inform the inference process about the hierarchy of classes.
  Doesn't make that much sense for pylint itself, which is why we're handling the
  exception here, rather than in astroid

  Close _NonDeducibleTypeHierarchy exception on valid code pylint-dev/astroid#644

• Added a new command line option list-groups for listing all the check groups pylint knows about.

• Allow BaseException for emitting broad-except, just like Exception.

  Close #2741

• Fixed a crash that occurred for bad-str-strip-call when strip() received None

  Close #2743

• Don't emit *-not-iterating checks for builtins consumed by itertools

  Close #2731

• Fix a crash caused by iterating over Uninferable in a string formatting check.

  Close #2727

• Fixed false positives for no-self-argument and unsubscriptable-object when using __class_getitem__ (new in Python 3.7)

  Close #2416

• Support Ellipsis as a synonym for pass statements.

  Close #2718

... (truncated)

Commits

• 4612b66 Prepare 2.3.1
• 3c51bfa Pass quote=False to html.escape in the JSON reporter
• d7947b7 Pin dependencies to non-breaking version ranges
• b22c1d7 Add note about pushing the tags
• b596451 Use safe_infer() when inferring context's paths to prevent the acceptance tes...
• eef175e Better phrasing for this release changes
• 5747cdc Prepare 2.3, also update the release document for this release
• 2e2fa47 Prepare 2.3.0
• b18acac CRF: added a separate test for the bugfix
• 15e405f Fix bug of W0120
• Additional commits viewable in compare view

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[codecov]

Codecov Report

Merging #5938 into development will not change coverage.
The diff coverage is n/a.

@@             Coverage Diff              @@
##           development    #5938   +/-   ##
============================================
  Coverage        66.39%   66.39%           
============================================
  Files              286      286           
  Lines            13958    13958           
============================================
  Hits              9268     9268           
  Misses            4690     4690

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