Update dependency grunt to v1.5.3

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
grunt (source)	1.5.2 -> 1.5.3

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Release Notes

gruntjs/grunt

### [`v1.5.3`](https://togithub.com/gruntjs/grunt/releases/tag/v1.5.3) [Compare Source](https://togithub.com/gruntjs/grunt/compare/v1.5.2...v1.5.3) - Merge pull request [#​1745](https://togithub.com/gruntjs/grunt/issues/1745) from gruntjs/fix-copy-op [`572d79b`](https://togithub.com/gruntjs/grunt/commit/572d79b) - Patch up race condition in symlink copying. [`58016ff`](https://togithub.com/gruntjs/grunt/commit/58016ff) - Merge pull request [#​1746](https://togithub.com/gruntjs/grunt/issues/1746) from JamieSlome/patch-1 [`0749e1d`](https://togithub.com/gruntjs/grunt/commit/0749e1d) - Create SECURITY.md [`69b7c50`](https://togithub.com/gruntjs/grunt/commit/69b7c50)

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Configuration

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