build(deps-dev): bump rollup-plugin-json from 2.3.0 to 3.1.0

[dependabot-preview]

Bumps rollup-plugin-json from 2.3.0 to 3.1.0.

Changelog

Sourced from rollup-plugin-json's changelog.

3.1.0

2018-09-13

• Expose "compact" and "namedExports" options (#45)
• Update rollup-pluginutils to support null values in JSON (#44)
• Update dependencies and ensure rollup@1.0 compatibility (#46)

3.0.0

2018-05-11

• No longer create a fake AST to support tree-shaking with upcoming versions of rollup (#41)

2.3.1

2018-05-11

• Update example in readme (#38)
• Warn when using this version with upcoming rollup versions

Commits

• bb64f65 3.1.0
• 97615d6 Update changelog
• 1bcf81b Update dependencies and make tests rollup1.0 compatible (#46)
• 4df5395 Update changelog
• 2a528e3 Expose the "compact" and "namedExports" options (#45)
• e9c01b9 Update changelog
• 8de10c0 Update rollup-pluginutils to support null values in json (#44)
• 2b2fd1c 3.0.0
• 6fbcf89 Merge branch 'real-ast'
• 82ed3f2 Remove peer dependency requirement as this version will now work
• Additional commits viewable in compare view

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[coveralls]

Pull Request Test Coverage Report for Build 59

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 87.423%

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Totals
Change from base Build 55:	0.0%
Covered Lines:	208
Relevant Lines:	232

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💛 - Coveralls

[dependabot-preview]

Superseded by #41.