chore(deps): update dependency eslint-plugin-prettier to v3

[renovate]

This PR contains the following updates:

Package	Type	Update	Change	References
eslint-plugin-prettier	devDependencies	major	^2.6.2 -> ^3.0.0	source

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Release Notes

prettier/eslint-plugin-prettier

v3.0.0

Compare Source

• Chore: Add eslint peer-dependency (d55d79c)
• Breaking: Extract showInvisibles and generateDifferences (bf7c40c)
• Breaking: Defining prettier options must use an object (478c7e5)
• Breaking: Drop support for ESLint v3 and v4 (2326231)
• Chore: Update dependencies (1ec94c8)
• Chore: remove two unused dependencies (bfe459c)
• Chore: Rename test files to keep them sequential (d38ea52)
• Breaking: Remove pragma support (3af422c)
• Breaking: Update minimum required pretter version to 1.13.0 (29c0506)
• Breaking: Drop support for node v4, v7 and v9 (be460bd)
• Chore: Add vscode config to autoformat on save (9fac6b4)
• Chore: Improve travis matrix (46d2444)
• Chore: Add format script to run prettier (d46aa6d)

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[codecov-io]

Codecov Report

Merging #21 into master will not change coverage.
The diff coverage is n/a.

@@          Coverage Diff          @@
##           master    #21   +/-   ##
=====================================
  Coverage     100%   100%           
=====================================
  Files           1      1           
  Lines           4      4           
=====================================
  Hits            4      4

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