fix(deps): update dependency node-sass to v6

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
node-sass	^5.0.0 -> ^6.0.0

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Release Notes

sass/node-sass

### [`v6.0.0`](https://togithub.com/sass/node-sass/releases/v6.0.0) [Compare Source](https://togithub.com/sass/node-sass/compare/v5.0.0...v6.0.0) ##### Breaking changes - Drop support for Node 10 ([@​nschonni](https://togithub.com/nschonni)) - Remove deprecated process.sass API ([@​xzyfer](https://togithub.com/xzyfer), [#​2986](https://togithub.com/sass/node-sass/issues/2986)) ##### Features - Add support for Node 16 ##### Community - Fix typos in Troubleshooting guide ([@​independencyinjection](https://togithub.com/independencyinjection), [#​3051](https://togithub.com/sass/node-sass/issues/3051)) - Improve dependabot configuration ([@​nschonni](https://togithub.com/nschonni)) #### Supported Environments | OS | Architecture | Node | | --- | --- | --- | | Windows | x86 & x64 | 12, 14, 15, 16 | | OSX | x64 | 12, 14, 15, 16 | | Linux\* | x64 | 12, 14, 15, 16 | | Alpine Linux | x64 | 12, 14, 15, 16 | | FreeBSD | i386 amd64 | 12, 14, 15 | \*Linux support refers to major distributions like Ubuntu, and Debian

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