Update dependency grunt-contrib-connect to v4 (master)

[mend-for-github-com[bot]]

This PR contains the following updates:

Package	Type	Update	Change
grunt-contrib-connect	dependencies	major	^3.0.0 -> ^4.0.0

By merging this PR, the issue #799 will be automatically resolved and closed:

Severity	CVSS Score	CVE	Reachability
High	7.8	CVE-2021-43138

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Release Notes

gruntjs/grunt-contrib-connect (grunt-contrib-connect)

v4.0.0

Compare Source

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