Update dependency grunt-contrib-jshint to v0.12.0

[ghost]

This PR contains the following updates:

Package	Type	Update	Change
grunt-contrib-jshint	devDependencies	minor	0.8.0 -> 0.12.0

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Release Notes

gruntjs/grunt-contrib-jshint

v0.12.0

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v0.11.3

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v0.11.2

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v0.11.1

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v0.11.0

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v0.10.0

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v0.9.2

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v0.9.1

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v0.9.0

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Configuration

📅 Schedule: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

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