Update dependency grunt to v1.3.0

[mend-for-github-com]

This PR contains the following updates:

Package	Type	Update	Change
grunt (source)	devDependencies	minor	1.0.3 -> 1.3.0

By merging this PR, the below issues will be automatically resolved and closed:

Severity	CVSS Score	CVE	GitHub Issue
High	7.1	CVE-2020-7729	#176

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Release Notes

gruntjs/grunt

v1.3.0

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• Merge pull request #​1720 from gruntjs/update-changelog-deps faab6be
• Update Changelog and legacy-util dependency 520fedb
• Merge pull request #​1719 from gruntjs/yaml-refactor 7e669ac
• Switch to use safeLoad for loading YML files via file.readYAML. e350cea
• Merge pull request #​1718 from gruntjs/legacy-log-bumo 7125f49
• Bump legacy-log 00d5907

v1.2.1

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• Changelog update ae11839
• Merge pull request #​1715 from sibiraj-s/remove-path-is-absolute 9d23cb6
• Remove path-is-absolute dependency e789b1f

v1.2.0

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• Allow usage of grunt plugins that are located in any location that
  is visible to Node.js and NPM, instead of node_modules directly
  inside package that have a dev dependency to these plugins.
  (PR: support monorepos gruntjs/grunt#1677)
• Removed coffeescript from dependencies. To ease transition, if
  coffeescript is still around, Grunt will attempt to load it.
  If it is not, and the user loads a CoffeeScript file,
  Grunt will print a useful error indicating that the
  coffeescript package should be installed as a dev dependency.
  This is considerably more user-friendly than dropping the require entirely,
  but doing so is feasible with the latest grunt-cli as users
  may simply use grunt --require coffeescript/register.
  (PR: Remove coffeescript from dependencies. gruntjs/grunt#1675)
• Exposes Grunt Option keys for ease of use.
  (PR: FEATURE - Expose Grunt Option Keys for Ease of Use gruntjs/grunt#1570)
• Avoiding infinite loop on very long command names.
  (PR: Avoiding infinite loop on very long command names. gruntjs/grunt#1697)

v1.1.0

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• Update to mkdirp ~1.0.3
• Only support versions of Node >= 8

v1.0.4

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