build(deps-dev): bump pylint from 2.4.1 to 2.4.2

[dependabot-preview]

Bumps pylint from 2.4.1 to 2.4.2.

Changelog

Sourced from pylint's changelog.

What's New in Pylint 2.4.2?

Release date: 2019-09-30

• ignored-modules can skip submodules. Close #3135

• self-assigning-variable skips class level assignments.

  Close #2930

• consider-using-sys-exit is exempted when exit() is imported from sys

  Close #3145

• Exempt annotated assignments without variable from class-variable-slots-conflict

  Close #3141

• Fix utils.is_error to account for functions returning early.

  This fixes a false negative with unused-variable which was no longer triggered
  when a function raised an exception as the last instruction, but the body of the function
  still had unused variables.

  Close #3028

Commits

• f7850aa Prepare 2.4.2
• 6198797 Pin mypy and typed-ast to fix the CI
• aa587ec Add the missing rc file for class_variable_slots_conflict
• 552fa8a Fix utils.is_error to account for functions returning early.
• 4ec293c Exempt annotated assignments without variable from ``class-variable-slots-con...
• 1d3b07a consider-using-sys-exit is exempted when exit() is imported from sys
• ae3d421 Pin astroid to the latest minor release
• 2777743 Rename attributes to prepare for the astroid dataclass transform
• fde732e Bump master to 2.4.2
• d8fae01 self-assigning-variable skips class level assignments.
• Additional commits viewable in compare view

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[andreoliwa]

@dependabot rebase

[dependabot-preview]

Looks like pylint is up-to-date now, so this is no longer needed.